(Video courtesy of YouTube/WoodysGamerTag)

The Internet would be clogged up with a lot less bullshit if commenters and trolls had to eventually meet the guys they talk trash about, especially if the subject of their vitriol were a professional fighter.

The dude above is lucky that he called out Joe Lauzon and not Josh Koscheck, or he might be in a bit more pain. Koscheck once posted a message on his MS page that if anyone talking smack about his fighting prowess wanted to see how good he was, they could come into his American Kickboxing Academy satellite gym and find out.

Here’s a video of a guy who thought he could take the UFC welterweight.

Josh Koscheck Fights a Fan by BaDaBooM80

Kos and J-Lau aren’t the only guys who have answered an Internet challenge. UFC color analyst Joe Rogan once took the time to school a keyboard warrior on the mats who challenged him through MySpace.

(Video courtesy of YouTube/Str8Jive)

Since accepting the challenge, Rogan gets called out all the time now…

…by bubble bath-loving weirdos.

(Video courtesy of GoogleVideo)

…by Swedish UFC fans,

(Video courtesy of YouTube/Enbom)

…and by schizophrenic sociopaths.

(Video courtesy of YouTube/FunkyActionPen)