Two country boys, Leroy and Bubba, both have 6 children. One night they are sitting at the bar, talking about their kids. "Leroy", Bubba says, " I've been considering getting a vasectomy, on account of all the kids I have." "Well Bubba, I've been considering getting one too, I'll go to the doctor and ask about it if you go with me." Leroy responds. They decide to go to the doctor the next day and hear about the procedure.
The next day, they go to the doctor. He explains the procedure, and gives them a price of $5000 per surgery. "$5000, Doc? I'm a poor farmer, I can't afford a $5000 surgery" says Bubba. "Same here," says Leroy. "Well," says the doctor, " I've got a procedure that you can perform at home. First, get a Coca-Cola in a can, drink it, light an M80 firecracker, put it in the can, keep hold of the can, and count to 10." "Does that really work?" Leroy asks. "I'm sure of it" says the doctor.
Both men go home, and Bubba decides to give the doctor's method a try. He drinks the drink, lights the M80, puts it in the can, and begins to count to 10 using his fingers. After he gets past 5, he holds the can between his legs. Right when he gets to 10, the firecracker went off, and he no longer needed a vasectomy.