(Man visits doctor about a sexual problem..)
Man: Doctor I feel terribly embarrassed, but I've got a 'small' problem...when I make love with my wife, I have a 'small' problem..you know......I'm a bit small...
Doctor: Hmmmm,now when your in the bar with your friends, what do you drink?
Man: I drink Fosters!
Doctor: Aha! Now there's your problem you see..when you drink Fosters it makes things shrink and go smaller! So what you need to do is to drink Guiness instead!
Man: Guiness? You mean that black Irish bitter stuff?
Doctor: Yes! Guiness is good for you! It makes you big and strong! If you need to get bigger, drink Guiness!
Man: Thankyou doctor! I will try that!
Doctor: Good! I'll contact you in a months time to see how you are getting on!
(One month passes..)
Doctor: So how are you getting on now?
Man: Oh fantastic! My sex life is just great now!
Doctor: Good, so your drinking Guiness now?
Man: Are you kidding? I've got my wife drinking Fosters..
Doctor:
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