My brother said, 'I've got this awful job down on the farm. I'm up to my elbows in manure all day.'
I said, 'Well at least it'll stop you biting your nails.'
Here are some randomly selected joke topics
Wife
How old is your wife?
Approaching forty.
Yes, but from which direction?
Green
What is large and green and spends all day sitting in a corner on its own?
The Incredible Sulk.
Doctors
Doctor, Doctor, I keep thinking I'm invisible.
Who said that?
Doctors
Doctor, Doctor I feel like an apple.
Don't worry we'll soon get to the core of this!
Employee
Boss: Has your supervisor told you what to do?
New employee: Yes, sir, he told me to wake him up if I saw you coming.
Not Yourself
You're not yourself today. I noticed the great improvement at once.
Sheep
What does a sheep that doesn't like Christmas say?
Baaaa Humbug.
Girlfriends
Joe: My girlfriend uses lemon juice for her complexion.
Bob: Maybe that's why she always looks so sour-faced.
Mother-in-law
I'm not saying the mother-in-law's ugly, but she uses her bottom lip as a shower cap.