Well, I'm a teacher and for me laughing is very important. Personally, I think that it makes the classes more enjoyable, but also it takes the fear away from the kids. Why? I have worked with groups that the previous teacher didn't make a god job teaching them the language and instead of helping he or she made it worst. So, laughing makes a big difference in the class. It can make funny and enjoyable English where you like to be and you love to learn.
Also, if you have terrible bosses can make your workplace more tolerable.
Now, to finish let me tell you some jokes.
1. Today at the bank, an old lady asked me to help check her balance. So I pushed her over.
2. I bought some shoes from a drug dealer. I don't know what he laced them with, but I've been tripping all day.
3. I told my girlfriend she drew her eyebrows too high. She seemed surprised.
4. My dog used to chase people on a bike a lot. It got so bad, finally I had to take his bike away.
5. I 'm so good at sleeping. I can do it with my eyes closed.
6. My boss told me to have a good day.. so I went home.
7. Why is Peter Pan always flying? He neverlands.
8. A woman walks into a library and asked if they had any books about paranoia. The librarian says "They're right behind you!"
9. The other day, my wife asked me to pass her lipstick but I accidentally passed her a glue stick. She still isn't talking to me.
10. Why do blind people hate skydiving? It scares the hell out of their dogs.