Aged about 8 our grandad was staying with us and I hid his glasses. Nobody thought it was me but he knew. He was literally almost blind for a week and even went poking with his walking stick down the loo. "I know it's her. I just know it, little bitch" Eventually they magically re-appeared on the sideboard. I never did own up and my mum never thought it could possibly be her blue eyed girl.