My youngest has an obsession with signs at the moment - but only the ones for no xxx. so he points out "mum, no smoking in there...no dogs, look..." and that kind of thing. We passed a posh cafe on Monday and he said:
"Look mum, no fighting in there" and pointed to a no smoking sign.
"No, that's no smoking."
"Does it have one to say no fighting?"
"No."
"Can we go and fight in there then?"
"Ummm???!!!"
As a separate little funny, it turns out he thought the cigarette on the sign was a light sabre - hence the fighting. I've been laughing on and off ever since at the thought of him and me going in there, ordering croissants and orange juice, and then beating the poo out of each other with light sabres while we wait!