Depending on what you read, MMA is either human dog fighting, a sport that should be included in the Olympics, what True martial arts should be, or an abomination that needs to be stopped. Therefore when you tell your friends and family that your are training for MMA, it will conjure many different pictures in their minds, here are a few.
This is what your parents think you do when you tell them you do MMA
This is what you tell your friends you do in MMA
What other martial arts think you do
What you really do