If anyone can explain this that would be great.
Short version or long version?
Long version: Aluminium is not a magnetic material so whatever was sticking that aluminium key to your chest, it was not magnetism. It was in fact adhesion merely due to the sweat and natural oils on your skin. But I know I’ve already used too many words for your limited brain to follow, so here’s the short version.
Short version: YOU ARE AN UTTER FUCKWIT!