I caught my boyfriend cheating on me by finding a hair extension in his bed. Yes, a hair extension. We got into bed all cosy, and I remember feeling something at the bottom of the bed under the covers. It felt like my foot touched an animal and so I jumped out of bed and screamed. We pulled off the covers to find a big chunk of black hair extensions balled up at the bottom of the mattress. I will never forget the look on his face as he tried to lie his way out of it saying it got caught on his “sock”.