Dangerous!

Bike in today - mtb front wheel felt a bit loose so went to tighten up q/r. Found that someone had obviously lost the screw end so had cobbled it together - the lever of the q/r was directly against the dropout on one side - the rubber 'knuckle part was on the otehr side and the whole thing held in place by a tiny alloy wingnut. The wheel could never have been tightened up properly and would probably have come out on the first bump. Fortunately no damaged to the drop out - but the q/r lever end was badly damaged so had to be replaced. This was a very dangerous set-up! I assume the same person was responsible for the cobbled together B screw at the derailleur end too!!!