the one at the gym
that can bench press 5000 lbs and expects you to do the same even though you never lifted anything heavier than a wii
controler. she stands over you yelling "one more! come on you whimpy little wuss! quit crying and lift that! it's only 5 lbs!" You thought you wanted to get into shape but she is making your life an achey hell and now you're so sore it hurts to breathe! she also wants you to run for half an hour and you can't even run from the sofa to the fridge without wheezing because of smoking 5 packs a day and drinking a 12 pack of BudLite for each meal.
"I really want to meet you on xbox live but I can't get up and turn it on cuz my personal trainer worked me over really good 3 days ago. I almost couldn't pick up the phone to answer your call I hurt so bad! Hey, buy the way, can you come over for a bit with some BudLite and feed me cuz I can't make it into the kitchen I hurt so bad."
The gym world's version of a Dominatrix.
I gave my personal trainer $75 to make me cry and she did.
A person who can't reach the qualifications to become a gym teacher.
Those who can't - teach! Those who can't teach, teach gym. Those who can't teach gym become personal trainers.