Originally Posted by
thugpipe
my former employer always talked about putting a long cork screw up the seat tube of a bike geared to the pedals you could engage when you park....all I could think about was what if you ever forgot to disengage it
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Same limitation applies to the suggestion of loosening QR and other painful booby traps for the forgetful owner. If the cyclist is that careless/forgetful about bringing a lock along, or using a lock is only a sometime thing, what makes him have a sharp memory for safing his own booby trap(s)?