Don't worry about sending merit for this, I would rather be happy to earn it from a good post. Here I have a cracker for you
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Dad bought a robot hand for son's birthday. The speciality of it is, it can detect lie and slap on your face for the lie.
The family is having their dinner.
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Dad: Where were you last evening?
Son: At mates.
Dad: What you guys were up to?
Son: Homework.
The robot slapped the boy.
Son: No, we were watching movie!
Dad: What movie?
Son: F&F
The robot slapped the boy again.
Son: No, Thor: Ragnarok!
The robot slapped the boy again.
Son: No, Wonder Woman!
The robot slapped the boy again.
Son(Silently): Porn
Dad: What the hack! When I was like your age I never thought of it!
The robot slapped the dad now.
Mom(pointing the dad): Great daddy's great son
The robot slapped the mom now.
--Little modified from the original one (I don't know where I first heard/read it)