Though I'm not expounding on events (in the worst of my four deer/bike collisions) with the intention of it being seen as "how to" advice for what anyone else should do, I am posting the personal experience details as that they are almost verbatim to what Siverstorm posted. These being actual events as they occurred one fateful night, about fifteen years ago, on the top of Hwy 35, between Alices and Four-Corners.
There's no question in my mind that in this worst-case form of unavoidable impact with an animal of this size, and no time/distance to effectively reduce any speed of value, survival in what appeared in the seconds prior to impact to likely be a serious or fatal collision, doing the following actions provided the best possible outcome (walking away with only a broken big toe and sprained knee).
Deer was standing completely broadside, dead-center in the middle of my lane, directly over a blind rise. Impossible to see the deer until the headlight settled over the rise, which was less than 2 seconds from the moment of totally (at that point) unavoidable impact.
The decision for consciously getting completely OFF the front brake (after a brief moment of maybe a second for shedding a few MPH) at the moment of impact with the deer; being done to get the weight off the front end of the bike. Having still had braking on, and the weight all forward, would have surely otherwise resulted in an instant cartwheel crash over the top at impact with the deer's body; tossing my body high into the air and crashing down onto the pavement ahead.
Getting my body low, back, and braced on the bike right before impact also being done for the very same reason of trying keep the forces as low and directed forward as possible, to resist the tendency fo the bike to otherwise pivot around the front wheel and flip me (and the bike) over the top.
The thought of getting back on the bike and ensuring it hit the deer first, being that the bike's greater mass than the deer (and greater mass than myself) could be utilized in a cattle-guard effect to move the mass of the deer away and clear a path to continue forward after impact.
Knowing that being into the throttle (rather than off the gas) stabilizes a bike, and gives a bike a defined direction of travel that it is fighting to continue to travel, I elected to take that approach just prior to front of the bike's contact with the deer's torso.
I guess it's along the same philosophy as in football where two players are going to collide in a hard block. The player that focuses the greatest amount of force/energy directed into the other party usually wins out, with the meaker guy often getting knocked hard to the ground.
All the decisions and actions above were decided upon in a very split-second window of time that was offered between initial sighting to the point of impact in this worst-case incident. Due to the relativley high speed of travel at the time (my young/stupid decision) and pending direct impact, despite the above action plan I still had visions of this moment being "my last ride" event. I could see the RIP thread on BARF in the making.
Basically it came down to a "what have I got to lose" mindset at that point, knowing that any other action plan would have almost guaranteed a horrific outcome for my body/life.
So what was the impact, to post-impact outcome?
- - front fairing/headlight/frame area directly impacted deer's torso
- force of impact tore through deer's body, splitting it into two halves that initially folded around either side of the bike as the bike (and I) drove through it
- rear half of deer impacted my left knee and boot as I was passing through (causing broken big toe and spained knee)
At that point I remember the warm thoughts going through my mind of "Damn, I'll still up!". Unfortunately that moment of euphoria was short-lived, as the upper half of the deer wasn't through with me yet!
- upper half of deer wrapped around right side of bike, and eventually became wedged under the rear tire as the bike continued on for 50 feet or more past the point of initial impact, still upright
- finally the rear tire rolled up over this wedged section of the deer, slowly lifting the rear end of the bike upward (a foot or so?), and rotating it out to the side. At that point it felt like a giant hand had just slid the bike out from under me, with the bike lowsiding and me going off on the left side and beginning a very long slide down the roadway. The bike sliding on it's plastic and metal for another 50 yards or more past the point at which I came to a stop.
So basically the steps taken in this last-ditch survival effort, in this particular worst possible case unavoidable (at that point) broadside impact of a moderate sized (100 lbs, or less?) deer, did succeed in allowing me to live through the event, get up and walk away (albeit with the sore knee and broken toe) to ride another day.
A new front fairing, fender, headlight, lever, a few incidentals and some paint were the extent of what it took to bring the bike back into use for another couple years, and 30K miles of continued backroad riding.
Was there luck involved in the outcome in this horrible event? Absoutely, I'll be the first to raise the flag on that!
Despite that acknowledgement, if I were ever faced with this exact same scenario in the future (every single element being identical), would I do the same thing? Based on the antidotal evidence of the outcome of events from that night; ABSOLUTELY!
Do I ever want to face another instance to retry that process? HELL NO!!!! Avoid those critters at all costs!!!