Bob comes into work to find his buddy Jim sitting there laughing.
So he asks "Whats so funny".

"I made a terrible Freudian slip before, I was queing to buy my train ticket and I couldn't help but notice the lady behind the counter had really nice boobs.
Well when it was my turn to be served I asked for a ticket to Titting when I meant to say Tooting."

So Bob asks "Whats a Freudian slip?"

"It's when you go to say one thing, but say what you were really thinking by mistake."

Next day it's the other way round, Jim comes in to find Bob sitting there laughing and asks "Whats so funny?"

Bob says "I made one of your Freudian slips this morning, I went to ask my wife to pass the sugar, but instead I said;
you've ruined my life you fat cow."