we have a talking cat...so naturally we would charge people money to see him meow sarcastically, and when the customers get upset he would shout obscenities at them then proceed to lick himself with his hind leg extended in an awkward manner.
a trainer is a program designed for cheating in pc games. trainers are ran along-side the game they were designed for. each trainer has specific options that are mapped to hotkeys on your keyboard, toggling these hotkeys will activate the respective option (eg. f1=unlimited health, f2=add money, f3=1 hit kill etc.)