Sometimes, MMA fighters will try to make their fight exciting by dropping their hands and daring their opponent to hit them. UFC middleweight champ Anderson Silva did it in his easy win over Stephan Bonnar, and Nick Diaz is quite well known for making this move.
To beg for a punch, a fighter should have confidence in his or her chin. He or she should be positive that this won't happen:
Yep, that's why the referees remind fighters to protect themselves at all times.