What's the most impressive feat of DDRship you've ever seen?

[animeguy]

I remember in Six Flags in Maryland, this guy was doing MAX300 on HEAVY and was hitting each arrow almost perfectly, he got only two or three goods. right before the end of the song, some kid starts stepping on the arrows and the dude trips. Game over! You lose! Gee, the guy sure was pissed off at the kid. He probably would have gotten an A or a AA if he passed. (note IF being the keyword.)