General Joke Thread

[tbmlondon]

I thought that there should be a thread for general, non-bus-related jokes. They could be as good or as crap as you like.

Just to add some light humour to the 'Off-Route' section, I'll start:

Knock knock
Who's there?
Avenue
Avenue who?
Avenue got anything better to do than to read crap jokes? 

[ServerKing]

Q: What do Russian soldiers use to go to the toilet?

A: Poo Tin

[MetrolineGA1511]

Q: How do farmers know which cows are the oldest?
A: They are the ones who produce long-life milk!