I know someone who was travelling home from Uni, packed his car and set off down the motorway. Suddenly realised that his A1200 wasn't on the passenger seat, remembered he'd put it on the roof while packing the rear of the car, braked and saw the poor miggy go flying off the roof to land on the carriageway in front of him (to be promptly run over of course).
Shame he didn't just pull over gently (rather than the jolt of the brakes) as the little rubber feet (LRF[tm]) had kept it on the roof up to that point!
He also had an 030-50 in there too so didn't just lose a vanilla 1200!