One funny story from the concert... Right after the Counting Crows came on i saw this huge puff of smoke a few rows in front of me and thought "they're smoking indoors? How rude... This is america, you can't do that!" and then a few seconds later as the smoke wafted about I realized they were smoking pot and my first reaction was "oh, that's not nearly so rude"...

The odd thing is I think this reaction is relatively common, it is also somewhat strange.