New bike unsqueaked (we think)

Out on the new bike again today and the goddamn squeak started again at a low speed. Had a few different theories as to the cause and tried them all but the squeak was a persistent little bugger and always returned after a minute or two. Finally Clive and me turned the bike upside down out on the trail and when Clive held the front brake on I could actually see that one of the pads wasn't actually making contact with the disc. Out came the multi tool and a bit of severe tweaking ensued accompanied by the odd expletive and warning to the bike to behave or else............... and it's worked (so far anyway), no more squeaking. So the answer is always accompany your repair with a good hefty warning, you can't fail!