"Logical Reasoning" joke

Two friends signed up for college.

When they looked at their schedules, the first friend noticed he had Logical Reasoning as a class. Not knowing what it was, he went to the class and asked the teacher what logical reasoning was.

The teacher than proceeded to explain: "Do you have a weed eater?"

"Yes," replied the guy.

"You have a weed eater, which means you have a lawn, which means you have a house, which means you have kids, which means you have a wife, which means you're straight."

When he got out of class, he met with his friend who asked him what logical reasoning was about.

"Well," said the guy. "Do you have a weed eater?"

"No," replied the friend.

"Then you're gay!"