A construction worker goes to the doctor and says,
"Doc, I'm constipated."

The doctor examines him for a minute and then
says, "Lean over the table."

The construction worker leans over the table, the
doctor whacks him on the ass with a baseball bat,
and then sends him into the bathroom.

He comes out a few minutes later and says, "Doc, I
feel great. What should I do?"

The doctor says, "Stop wiping with cement bags."