As a teen, my younger brother was flicking a teatowel at my face whilst I was eating a meal. I put my hand up to protect my face, but at the same time, stabbed the prongs of the fork I was holding, directly between my eyes. I somehow didn't realise I'd stabbed myself. Adrenaline I guess.
I kept telling him to stop, but then saw the look of horror on his face when I realised that blood was dripping down my nose, face and into my meal! I think the sight terrified him, because he never did anything similar again. 😆