A long time ago in a galaxy far far away, I saw Carlin at Milwaukee's Summerfest. The stage itself faced backed up to Lake Michigan. During his routine (the beginning of the 7 words you can't say on tv stuff), unbeknown to Carlin because it was above and behind him, a big blimp with lots of bling hung over the Lake. He clearly saw members of the audience looking up and pointing so he turned around, saw the blimp and promptly went on a impromptu riotous riff about blimps.
He was one of my favorites ever since.