I finished a service upgrade yesterday and am awaiting inspection scheduled tommorow. Tonight, after six, I get a call from the owner of the house (it's a rental) and he says the water heater doesn't work. I assumed it may be a bad breaker or I messed something up so I told him I would be right out. I get there, 23 miles away, only to find the renter turned the breaker off and couldn't figure how to reset it. I turned the breaker on and was done. How do you handle this? I am afraid I am going to be told I'll have to eat this one. Any advice is appreciated.