Usually they're lying
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.
First he lies on one side, then he lies on the other. Credit: Nicholas Sparks from his book 'See Me' which I am reading now.
Because it's down to earth.
Because at one point, she was infidel. Ok ill leave now
