It might explain the "lurking in shadows" quirk too

My wife noticed I had a stray hair on my head sticking straight out like an antenna, so I was forced to admit that when I was younger I'd been bitten by a radioactive spider. Unfortunately, it wasn't all that radioactive, so instead of being able to shoot webs from my hands, I just get really sweaty palms.

She said it was too bad I didn't get that "eat your mate" habit too.