ChrisSD: An electron and a positron walk into a bar. "You're round" says the Positron. "Are you sure?" asks the Electron, to which the Positron replies "I'm positive".
tinyE: Grasshopper walks into a bar. The bartender says, "You know we gotta drink named after you?" The grasshopper says, "You have a drink named Steve?"
A group of parabolas are on their way to the infinite, when they see an exponential going alone.
One of the parabolas hails : "Hey! do you want to join our group ? You seem to follow the same route, come with us, you seem like you can use some friends ?
Then the exponential sadly answers : "No thank you ! I appreciate you proposing me to join but whether or not I integrate, it won't change a damn thing for me ; I will turn up alone soon enough".