Bubba and Earl had a thriving moonshine business but one day the Feds came in, destroyed their still, and offered them an education, courtesy the US Government, so they could earn a living.

On the day Earl was to be interviewed by admissions at the local university, Bubba rode along in the pickup. Earl's interviewer suggested he may be interested in a course in logic. When he asked what logic was the interviewer said he would give him a demonstration and asked Earl if he owned a grass trimmer. Earl said he did. Then, the interviewer told him, "if you own a grass trimmer, you must have a lawn. If you have a lawn, you must have a house. If you have a house you must be married. If you're married you must be heterosexual."

When Earl got back to the pickup Bubba asked him what course he decided on. Earl told him he had signed up for the logic course.

Bubba asked, "What's logic?"

Earl said, "I'll give you a demonstration." He asked Bubba if he owned a grass trimmer.

Bubba replied, "No."

Long silence, then Earl said, "Geez Bubba, you're queer ain't you?"