A construction worker on the 3rd floor of a building needs a
handsaw and spots a Jamaican man on the 1st floor.

He yells down to him, but the noise makes it impossible to hear
anything, so he tries sign language.

He points at his eye meaning "I", points at his knee meaning
"need", and moves his hand back and forth in a handsaw motion.

The Jamaican man on the 1st floor nods his head, pulls down his
pants and starts masturbating.

The man on the 3rd floor gets so angry he runs down to the 1st
floor and shouts, "What the hell is wrong with you, idiot? I said I needed a
handsaw!"

The Jamaican guy says, "I knew that, I was just trying to tell
you "I'm coming."