#1) I passed on a perfect chance to get some Jordan XI's back in '95 or '96, instead going with some other Nikes that I can't even remember at this point.
#2) I didn't go see Nirvana when they played here in late 1993, just months before Cobain blew his brains out, thinking for sure they'd be around for a while and I'd have plenty of other opportunities to see them.