Because they're paid to.
Because she is smoking hot
Because he thought people were taking him for granite.
Sandwiches.
They'll both lie and tell you it's a footlong to get paid.
They're always trying to 1-Up you.
I can do "well-done" all the way to "CPR might actually work."
He said, Because I couldn't stop laughing.
He always tells them with a dead Pan face.
Disclaimer: I don't know how well this joke will work in English. What's yellow and lies in a pond? An excevator. You don't think this is funny? Neither does the operator.
A Joke