I was disappointed and irritated, although I laughed afterwards when I got home and thought about it, when some old guy hit me with a cane when I stopped in front of him to cheer during Dut Foster's match. I found that extremely rude. I beleive he was wearing red, maybe from Oberlin, not for sure.
(Don't mean to offend anyone from Oberlin, as I am not 100% sure of the team and was probably just one old cranky guy that doesn't reflect on your fans as a whole)