I came in to the bathroom to witness two boys (four and five years old) who were supposed to be taking a bath, but instead were having "sword fights" by the toilet using their urine streams. I had to shake my head and laugh. At least they were aiming into the bowl.
This kind of thing doesn't happen with girls. Josh assures me this is completely normal male behavior, at least for that age...I hope he has outgrown it.