You do realize that even if you let your oil drain for an hour your not going to get 100% of your old oil out, and if you get an oil change and the oil is still "looking" dirty well sorry but your the one at fault bud, why let it get so dirty in the first place? I'm glad I don't have to deal with you as a customer, and wish you could deal with customers such as yourself on a day to day basis. If you want to vent do not do it on the poor kid changing your oil all he is doing is his job and to put food in his mouth.