Not sure if this is a right of passage, or just the most truly dumb bike thing I've done:
Not setting a trunk-mounted rack high enough to avoid cooking a bike's tire and tube on a lengthy automotive piggyback ride. Thankfully the drive home, rather than outbound, but still. Not so bad as to warp the rim; bad enough to require rubber replacement.
%#$U& internal combustion vehicles.
Dan Kehew
Davis, California, USA