yeah, customers are the devil. I worked at an a&w/subway/restaurant/motel for a few years. Nothing is ever good enough for them. They complain and think that it's your fault that the prices are so high and... grrrrrr
some days I just wanted to jump over the counter and punch every customer that went through that line... well, those days are over, I feel better now.
The way to trancend karma lies in the proper use of the mind and the will. The oneness of all life is a truth that can be fully realized only when false notions of a seperate self, whose destiny can be considered apart from the whole, are forever annihilated.