If you liked the last thread of bad jokes...
Here's another one. (Yes, it's a TVTropes link, but it's not a terribly dangerous one. Mostly bad jokes, very few references.
At the zoo, a group of porpoises were telling the visiting kids to do all kinds of bad things. After a talk with the zookeeper, they promised to be nice if he would bring them some mynah birds. The zookeeper agreed, so he walked past a sleeping lion to get some mynahs. On the way back, he was stopped by a police officer who arrested him for transporting mynahs across a sedate lion for immoral porpoises.
At the zoo, a group of porpoises were telling the visiting kids to do all kinds of bad things. After a talk with the zookeeper, they promised to be nice if he would bring them some mynah birds. The zookeeper agreed, so he walked past a sleeping lion to get some mynahs. On the way back, he was stopped by a police officer who arrested him for transporting mynahs across a sedate lion for immoral porpoises.