A: Can you tell me a joke that has never been told before? Something about dolphins and three types of tomatoes.
G: Well, there are three types of tomatoes: red, green and yellow. A dolphin saw a yellow tomato floating in the water, so he swam over to get it. But when he got close, he saw a green tomato floating next to it.
A: And...
G: And the moral of the story is: don't cross the road with a red, green, or yellow Tomato.
A: <facepalm>
G: Hey! I'm just trying to make you laugh!