only one that comes to mind: i was at an outdoor electronic music festival in south-central PA. during a lull in the music i left the festival site to go make a beer'n'snack run, there was a gas station a few miles away. i was high on life (yes, at the time, only life) - weather was beyond gorgeous, music was awesome, i was hanging out with some great friends, bbq'ing in the forest, swimming in a stream, etc etc etc. on my way back to the festie, ripping down a country road, music blaring, i came across a doe and her two fawn in the middle of the road. mom & jr#1 got out of the way in time, jr#2 didn't. if i had been a little more responsible, if i had kept my hands-in-the-air attitude under control until i returned to the festival, i probably wouldn't have killed that deer. ruined the rest of my weekend. i didn't tell anyone back at the festival (i feared, probably wrongly, that it would bum them out as much as it was dragging me down) but everyone noticed that i wasn't having as much fun.