socket tester

Evening. After testing every plug socket in the house and finding them all to be ok, I left the socket tester plugged in to a socket with the switch switched off. I didn't leave it plugged in intentionally, I'm just lazy. Days later, I'm in the kitchen and all of a sudden the socket tester...

Just a quick one for the regulars; just picked up my first proper voltage tester along with a Kewtech LoopCheck 107 socket tester and a DiLog socket break out. I do wonder though, how many people buy socket testers with a built in loop test feature and plug it into a 25M/30M extension lead and...