wat happens when u leave cream of mushroom campbell soup over night in the fridge. 

over many.. many nights. 

yep it develops a layer of velvety white frost and sprouts real mushroom and all its related fungi cousins!

As charles says: it's been there for so long, i think it's radioactive.

well so long charles, i guess he wun be missing all e radioactive food i leave in his fridge when we move office. whooo