Nut shot win/loss percentage 2013

Ok this might be moved to the anus or asylum, but how do nut shots affect a fighter?

Do they get pissed off, become more aggressive?
Does it throw them off the game plan?
Could it be a good idea...

Source: http://ninjashoes.net/forum/showthread.php?79907-Nut-shot-win-loss-percentage-2013&goto=newpost

Tadhg Steamfist Dixon Joe Doerksen  Chris Dolman Edson Drago  Tomasz Drwal