Haha reminds me of a job I did quite a few years ago before mobiles, installing a system for a chippy I knew, was a bank holiday but I was working, he and the mussus decided to go out for the day, phone goes, I answered it thinking it might be him, this lady with a slight American accent spoke, (their daughter) asked who I was I explained, next thing the filth turn up all blues and two's house surrounded, when they saw floors up new rads, boiler in box, copper tube etc they believed my story, it turned out she was married to a state trooper (whatever that is) when mum or dad didn't answer and being Easter monday told hubby he got on to his office they contacted nearest police station in Exeter (Heavitree road anyone who knows the area, they lived about 1/2 miles away) good job it wasnt the states as when I anwered the door I had a claw hammer and nail bar in my hands I would most likely been , shot, it all ended with smiles and laughs all round and the daughter got her dad to get me a bottle of Malt for the fright it caused, wouldn't happen now, I would have finnished the system and been long gone before they turned up!