Electricians Knees.

[ProDave]

Like many electricians, my knees are starting to give me trouble.

So I went to the doctor and he sent me for an X ray.

Can you spot what the problem is?

 

[Sharpend]

Your knuckles have worn the knee cap!

 

[Rob_the_rich]

Yep, too much swimming. Mine shrinks too when I get out of the pool.

 

[kerching]

Mine used to be a foot long

Didn't use it as a rule

 

[sprocketflup]

I heard that Jeremy Beadle had an enormous one.

But then again,on the other hand.....