There's a dude we ride with that everyone calls Racer Dave. He does race but still rides quite a bit on the street. Dude is so fast it's not even funny. Seriously NUTS but with a whole whackload of skill to back it up.
He's also one of the most modest people I know!
Lots of people I meet that talk a big game....but unless they're dangerous I don't pay too much attention to them.