a kid was crying standing outside his house
a passer by asked:why are you crying?
kid:my parents are fighting inside the house
passer by :who is your father?
kid:that is what the fight is about .

another one

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A man receives a phone call from his doctor.
The doctor says, "I have some good news and some bad news."
The man says, "OK, give me the good news first."
The doctor says, "The good news is, you have 24 hours to live."
The man replies, "Oh no! If that's the good news, then what's the bad news?"
The doctor says, "The bad news is, I forgot to call you yesterday."
more

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Son: Dad, what is an idiot?
Dad: An idiot is a person who tries to explain his ideas in such a strange and long way that another person who is listening to him can't understand him. Do you understand me?
Son: No.