Mine was my own fault. I was on a week long road trip, and I plugged the 1st flat in a small town somewhere in eastern Oregon.And no, I never had a flat twice while on a trip, but I suspect I will now, thank you very much for the jinx!![]()
In the past I'd always trimmed off the part of the plug that stuck out. A friend at work had suggested letting it wear off. I only had one knife with me on that trip, and so as to keep it cleaner for food use, I decided to try leaving the tails on. Spoiler: don't.
I'd feel a few small slips as I ran over the tail, then in a curve along a remote road, the plug pulled out with bang and abrupt deflation (vs the original slow leak). The plug I installed then lasted the life of the tire--which was just a bit more than the rest of the trip and return to the Bay Area. Pretty remote area to get a flat, and I was sure glad to be relaxing while it inflated rather than pumping under the Summer sun.
It turned out my coworker who suggested leaving the tails on hadn't actually tried it. He'd heard about it from a friend.
I have one of these for each bike. Not the cheapest or the most expensive, but they seem reliable and convenient.
https://www.motopumps.com/shop/air-shot