Re: Obligatory XKCD
My mother-in-law asked why her FreeSat box couldn't record 2 channels simultaneously, went through the usual 'are both cables connected, are they in the right sockets etc.' on the phone, nothing obvious.
Went up there and yes, everything was connected, F-plugs fully tightened. However the so called professional installer had bent the conductor on one plug so it missed the hole in the socket, then merrily applied force to jam the plug in! Quick straightening of the copper and carefully aiming got the thing connected 'well enough', albeit at an angle because they'd bent the bloody plug as well as the core!
Seemed churlish to turn down a beer.