Here are some randomly selected joke topics beginning with the letter 'C'
Complain
The more you complain, the longer God makes you live.
Complaining
My wife keeps complaining I never listen to her ...or something like that.
Committed
The murderer certainly was ruthless when he committed the crime!
How do you know that?
Because Ruth was with me.
Competence
The degree of technical competence is inversely proportional to the level of management.
Company policy
To err is human. To forgive is not company policy.