I've actually heard of a shmagnet coming loose from an oil drain plug and causing damage...
... that said,...
... my bike has a magnetic oil plug...
... that said,...
... my skull is really, really thick!... my buddy George once dropped a wood chisel on it, from the roof, and it kinda' stuck!...
...(didn't feel a thing!) ... he said,..."Here, hold this...",... and that was it...
...
... (ever wonder why they glue those magnets on?... I mean what kind of magnet needs glue?)...
Huh?...
...
... that said,...
...Why isn't there bacon flavored Jello?...
I would eat bacon Jello to death!...
...