Another Doctor Joke:
A man goes into the doctor's surgery, and says "Doctor, I'm having terrible trouble saying F's and TH's".
The doctor thinks about this for a moment, then fixes the man with a wicked grin, and says "Well, you can't say fairer than that, then, can you!"
Again, not mine - Kevin Day rattled this one off in a routine on TV about 15 or 20 years ago. Usually these things get repeated ever after by people, but I've never heard anybody tell this one. It always gets a laugh whenever I tell it, so I thought it was worth recording here.