Some people will find fun into soaking themselves into bio-ooze mixed with nuclear waste and see how their bodies react.
Sometimes something cool comes out, such as a 3rd arm, useful to scratch your butt, or a few extra meters in size to look more intimidating.
Sometimes it can go wrong, such as losing all your hair & fur, which can be problematic when winter arrives, or simply losing, well, your life. Not that life has an incredible value in the Generic Wasteland.

Commission for  Weird Cryptid