Do tell . . .
ok.. well this guy was a laborer of somekind (and also a bit of a stoner) and was driving his works van home late one night, and he hit a cat, he got out of the car and seeing it lying in the gutter he thought if it wasnt already dead he'd better make sure so he put it out of its misery, so did so using a shovel. now here's the nuts part.. days he later found a squished cat in the wheel arch of his car...
that is SUCH an urban myth!!!
Did your 'mate' also:
get struck by 'yellow lightening' - found dead with a hole in his heart surrounded by a pool of piss?
put two pencils up his nose during an exam and bang his head on the desk?
get caught with margarine on his pee pee trying to get his cat to lick it off?
Wake up in a bath full of ice with his kidney missing?
Have a room mate who was a medical student?
etc etc etc