Can somebody explain who some people are complete asses?

So I own an Automotive Performance Shop, it's called Lugosi Autosport in San Diego California.....trying to make a living feed my family...it seems that everytime an employee attempts to help out at the shop, i end up just completely getting scewed.. Further if you try to help clients out they turn and do a 180 degree turn, bite the hand that feeds them and try to act all hard as if they are actually going to do something...it's retarded I say