When ever something is supposed to be taken seriously you will find people making fun of it...
A Jehovah's Witnesses knocked on my door yesterday, so I answered it and asked if he wanted to come in he said, "Yeah, okay."
I said I'm just making a cup of tea do you want one? He said, "Yeah, sure."
I said I've just made some toast do you want a slice? He said, "Yeah, why not."
I then he sat down and I asked him, "So what now?" He said, "I don't know I've never got this far before!"
An Irishman goes into the confessional box after years of being away from the Church. There's a fully equipped bar with Guinness on tap. On the other wall is a dazzling array of the finest cigars and chocolates.
Then the priest comes in. "Father, forgive me, for it's been a very long time since I've been to confession, but I must first admit that the confessional box is much more inviting than it used to be."
The priest replies: "Get out. You're on my side."
Frank was rather sad when he saw an atheist lying dead on the table.
And the Frank said:
"Look at him...at dressed up and nowhere to go!"
The problem with being the "funny one" amongst your friends is that you have to be able to be at least slightly funny on demand. This is not as easy as you might think. The fastest way to get out of an awkward social moment is to drop a joke, the more awkward the moment the less funny the joke has to be.  But yuo cant go telling a dead baby joke to your boss and your friends at the pub probably wont like your office supply joke so now you have to memorize enough jokes to get you through any social setting.
Thats what I am here for. To talk you through the theory behind jokes and the basic structure of the joke so you may be able to craft your own joke to suit any situation.
This is called the "Thats what she said" Theory.