Today I was at work, and a woman came in pushing a trolly with two children in it. I would guess they were around five or six. I went over and talked to her and asked if I could help etc, then went back to stocking up the shelves. It was then the little boy said very loudly, 'Mummy, what's that boy doing?!' pointing to me. Even if he hadn't been pointing, the family and I were the only people in the store.
I grinned and went back to working, at which point the little girl joined in the boy's frantically repeated 'What is that boy doing?!'. Their mother rounded on them and was hissing that 'That's a girl!' To which the kids just kept getting louder and louder, going, 'No! It's a boy!' 'Mum, you're wrong it's a boy!'.
I was super happy about the whole thing, even though children are much easier to fool than adults. I was really brought down by the mother insisting I was a girl though

Ah well, that's just the way it goes