Seems more like racist jokes, rather than random. I've got a good one about a bus driver. They love hearing this one.
A guy is really horny and he wants to fuck. But he doesn't want to fuck just any woman, she has to be really bomb. So he spies the one he wants, except she's a nun. That doesn't stop him, he starts pestering her and making an ass of himself, but she refuses because she must remain a pure virgin until the day she dies for she is a bride of Christ. He follows her onto a bus and continues his pathetic attempts until he annoys her so much she gets off before her desired stop, and he finally gives up. The bus driver continues driving, but says to him, "You know, you're a real asshole, I think you owe that woman an apology if you ever want to ride a bus in this town again."
The guy agrees, thinking he should do the right thing. He inquires about where the nun went, and the driver informs him that she always gets off at the park to go pray by the statue of Jesus, so she's probably on her way there. The guy then gets an idea and gets off the bus. He goes to a costume shop and buys a loincloth, grinning like an idiot. He then runs to the park and finds the nun bent down in prayer at the Jesus statue, so he puts his idea into action. He ditches his clothes and he fashions a crude crown of thorns from some twigs and comes up behind the nun. "Behold, my child, for I am the reincarnated Lord Jesus Christ."
The nun is in awe and asks why he has approached her. He tells her he has returned just for that one day, to choose another Virgin Mary to receive his child in her womb. She informs him that she is on her period, but she offers him her ass instead, and he accepts. So he lifts up her black robe and starts buggering her. After he blows his load, he finally can't stand the guilt and admits he's just the jerk from the bus. The nun smiles and say, "Oh, that's okay, I'm not really a nun. I'm the bus driver."