I learned something, one time, when I hung around the dealer and watched him work on my car. I was in the waiting room, and watched, intermittently, through a window in the door leading to the service bays.
When I pulled my car in for service, I noticed a sign saying something like "Any part of an hour will count as a full hour of labor," or something similar. Being naive, I assumed, and I wager most folks assumed, that meant that if the mechanic worked on my car for an hour and a half, I'd be charged for two hours. OK, I'll buy that.
As I watched, I noticed that the mechanic worked on my car for 15 minutes, then a different car for 15 minutes, another for 15 minutes, and a 4th for 15 minutes. This went on for 4 hours. When my car was done, I was charged for 4 hours of labor, and so were 3 other poor suckers. 4 hours of work; 16 hours of billing charged. Nice business.
