"Irish Proctology" joke

An Irishman goes to the Doctor with botty problems....

"Dactor, it's me ahrse. I'd loik ya ta teyhk a look, if ya woot".

So the doctor gets him to drop his pants and takes a look. "Incredible" he says, "there is a 20 pound note lodged up here." Tentatively he eases the twenty out of the man's bottom, and then a 10 pound note appears.
"This is amazing!" exclaims the Doctor. What do you want me to do?"

"Well fur gadness sake teyhk it out, man!" shrieks the patient.

The doctor pulls out the tenner and another twenty appears, and another and another and another, etc.... Finally the last note comes out and no more appear.

"Ah Dactor, tank ya koindly, dat's och batt er. How moch was in dare den?"

The Doctor counts the pile of cash. "1,990 pounds, exactly."

"Ah, dat'd be roit, says the Irishman. knew I wasn't quite feeling two grand.."