This mutation grants:
The ability to randomly get parts by eating debris is obviously useful to a crafty character and can provide a good way to get raw materials even if your scavenge sucks. Also means you'll never have to buy food again because you can just eat bricks. The plus to climb is always nice as well. Grief your friends by eating their clothes and weapons. Munching doesn't make you full at all, but still cures hunger based on the weight of the item munched, and random stuff is everywhere, so you'll basically always have a food source somewhere.
A negative to persuade will hurt your lawyering and scamming but who even uses that anyways. It's incompatible with any of the racials that have an alternate form of food requirements for obvious reasons.
NOTE: Now compatible with Zombie!
After mutation you will be given an additional line to your description:
He/She has a little white tuft of hair under his/her chin, and two stubby little bony horns poking out from his/her skull.