I once got avi'd climbing pinnacle gully on MW. The route cut out way above and slammed me and my partner for what felt like over a minute. I was so thankful I was at a belay, and my partner had just put in a screw.
Bought a beacon very shortly thereafter and started learning snow science.
The force of that thing wigged me the fuck out, and I was in my very early 20's and clueless.
RIP. 2 hrs. under, still breathing, and then arrest. Absolutely brutal.