these socks are usually found by your spouse and or girlfriend causing extreme anger followed by yelling and cursing and possible break up.
my ninja sock ruined my relationship
girl: do you know what i found in the glove box of my car?
girl: one of your ninja socks, how the hell did it get there?
girl: i was cleaning the house , i lifted up a couch pillow and there he was hiding in the shadows
boy: what ?
girl: your ninja sock !!!!!!