i understand this one..

A man walks into his doctor's office and sits down in the
waiting room. While he is waiting his turn to be seen, a
casual acquaintance walks in and sits down next to him.

The newcomer asks "W w what are yyy you ddd doing here?"

The man replies, " I am waiting to see the doctor."

"W wwhy dd do yyy you wwant to sss see hhim?"

The man replies, "Well, if you must know, I have a prostate
problem.

" A pp prostate ppp problem, wwhat's ttthat?"

"Well, if you must know. I pee like you talk."