A construction worker in the 5th floor of a building needed a handsaw. So he spots another worker on the ground floor and yells down to him, but he can't hear him.
So the other worker on the 5th floor tries sign language.
He pointed to his eye meaning "I", pointed to hiss knee meaning "need", then moved his hand back and forth in a hand saw motion.
The man on the ground floor nods his head, pulls down his pants, whips out his Dick and starts masturbating.
The worker in the 5th floor gets pissed off so he runs to the ground floor and says, "What the fuck is your problem?! I said I needed a handsaw!" The other guy smiled and said, "I know that! I was trying to tell you - I'm coming.