just some i have came accross in the last few months:
This one was a property i had done lots of work in and required a full domestic so i knew everything was fine since i had left it. a month later and the tennant moves in and complains of a tripping RCD. turned out after i had done my work in there the boarders had been in and put new ceilings up (screwed new boards over old ceiling instead of ripping old ceiling down first) the result was things like this on 3 different legs of 2 circuits!
This one was just a reported high CPC reading on kitchen ring and discovered it while doing a kitchen rewire
This was my favourite to date. it was a house of horrors, DIY EVERYWHERE, with end to end readings being far too low for the size of the house on down ring. low IR's all over the place on 4-5 of the circuits. after tracing cables all over the house i discovered this (to be fair to whoever had done it, before i took this photo the junction box (without lid) was insulated.................. with a carrier bag!)
These are just random ones that haven't caused much harm:
shaver point, cables boarded tight against backbox
just take the pipe right across where my boiler spur is going why dont you!!!
the cable was glanded and and into the DB (wholesaler was waiting on cleats coming in at the time) so the joiner decided the cable would look better over the top of his shelf rather than against the wall. (also, kewtech testers, which you can see in pic, worst tester i have ever used)
hope you enjoyed them, i will update with more as i get them haha