I broke a string (while playing -- I've broken one or two while tuning, but that's not the same).
I don't know whether to feel like I'm growing up as a guitarist, or whether I've lost something. I've always felt a little bit smug when I see people break their strings, thinking "I don't break strings. I'm in more control than that."
These strings are way past needing changing, and I was playing "Black Davie's Ride" rather energetically, but I don't think I was being more vigorous than I usually am with that song.