honestly, I think that people should be shot that can't do that.
it's no harder than checking your tyres
like this
or this
anyway on to the question in hand, just a couple of months ago the dad in law took his Kia
Sadona to kwik fit for a pair of front tyres, that will be £205* please sir!
he then asked for a "free" brake check, that will be £675* sir for 2 tyres, 4 discs, front and rear pads, centre exhaust and a back box
needless to say neither tyres, brakes or exhaust were done there
*please note, prices are a guess as i can't remember what i did yesterday yet alone a few months ago but they were around this price!