Because his friend asked him when he thought they should cross.
Disclaimer: I don't know how well this joke will work in english. What's yellow and lies in a pond? An excevator. You don't think this is funny? Neither does the operator.
GUY WHOSE DESCRIPTION IS SO LONG HE DOESN'T ACTUALLY GET TO SAY ANYTHING:
A bird that will talk you ear off!
The Ink-credible Hulk.
'Can I join you?'
Sure, Bert!
M80
Brew.
Because when you're a carpenter in the desert you can't get wood.
He keeps getting NAILED TO THE BOARDS!...