I lie with a straight face to people in person all the time! But it is more a function of deadpan sarcasm and everyone recognizes it. I tend not to try to prank people because that's the extent of my lying, in general.

My mom told my dad when they were both fifty that she wanted another child for April Fool's Day, though, and hearing the description of how all the blood drained out of his face will never not be funny.