What is the funniest random thing your child has done to surprise you?

My little four year old just spoke to me in an almost perfect British accent. I have no idea what prompted her to do so, nor how she managed to nail it so well! Surprised the heck out of me and I’m sitting here giggling my head off as she continues to speak with the accent and grin at me!

What random things have your kids done that really surprised or shocked you?