Yesterday I reset the breaker for a GE wall oven/micro combo. It tripped when customer changed the broken light bulb with power to the machine. Then I had a dishwasher call that needed both a new wall receptacle and the knock-out on the garbage disposal removed. The last three "no drain" calls for dishwashers were due to not removing the knock-outs on the disposals, some of them running like this for a long time (yuck!). Also, the last two complaints for "leaking" washing machines were from clogged sewer lines. I also recently had an ice-maker call in which the machine was turned off.
I'm curious how many of your calls are like these.