The weirdest thing a boy or a girl has ever said to me? Surely you jest. I only speak to neutral genders.
I remember I was having lunch in the park a few years back while my leg was broken. I had to use crutches but I put them behind the park bench I was lying on - sandwiches taste better on your back, you understand - so they were well hidden. Quite suddenly, this girl comes along and sits right on my broken leg and proceeds to tell me about what she had for breakfast. I think it was noodles or something, but I couldn't hear too well over the agonising pain and my pained screaming.
I passed out, and woke up in hospital with two fractures. I never saw that girl again.