A horny young man went to a brothel…The lady at the counter asked him what his choice would be. The man wanted to know what was available.

Madam, On the first floor, we have the ex-models… they are all slinky and sexy… On the second floor, we have our ex-actresses…they are all buxom and beautiful… On the third floor, we have our ex-teachers….they…

Man, Say no more! Lead me to the third floor.

Madam, Are you sure… Im surprised that you would prefer ex-teachers to ex-models and ex-actresses.

Man, Its obvious, maam, teachers always make you do a thing over and over again, until youre perfect at it.