I fitted a new combi a while ago. I told the landlord it was a bag of shat and don't waste any money on it, he said to try and fix it. Cue £150 worth of new fan and it worked for another month or two before popping a circuit board.
After a told you so chat, in goes a nice Baxi. As I lifted the old combi off the wall and carried it outside, I remembered to grab the fan out for the LL to put it for sale / stock and went back in for a pozi screwdriver to get it out. By the time I'd walked in, opened my toolbag and walked back outside it was gone. I reckon less than a minute, if that. Went down like a lead balloon with the LL who was convinced I took it.
I don't have the Pikies anywhere near my jobs, and I've used the same localscrap boys ( also registered as waste handlers ) for around 10 years or so. Their in my phone as "Pikies" and when I see them around I shout "potato" at them. Goes down a storm.