Uncontrollable Superpowers

This character has superpowers that are somewhat or totally out of his control.

Examples of when to apply this trait:
1) this character superpowers seems to go off at random
2) the character can't stop using his superpowers even if he wants to
3) this characher superpowers seems to have a will of their own

This trait is based on a trope called informally power incontinence.