An aircraft electrician serving the Royal Air Force.
WHY?
Because they do, there is an urban myth in the RAF that recounts a tale of an aircraft electrician that was caught having sex with a dog.
Pilot: I ave a problem with the NR indicator.
LineSwine: I'll get a dogfucker to come and have a look at it for you
Dogfucker: I.E, racist white people who like to pretend they are not zoophiles by projecting their own retardation on middle-easterners. In reality 99% of zoophile porn involves american huwhite wimen getting effed by golden retriever while their god-fearing, muslim hating husbands watch.
An example of dogfucker in IRL.
White guy: You sand-n####ers like to fuck goats
Middle-easterner: Hold on a minute, i googled white people fucking dogs and i saw your sister lisa-ann getting fucked by a bulldog.
White guy: FUCK YOU TERRORIST.