Little Johnny at it again...

Little Johnny walked into class every morning with a black eye.
After a few days of this happening, the teacher became very worried and asked him about it.

Johnny's answer was: "Our house is very small Miss. Me, my mum and my dad, we sleep on the same bed. Every night my dad asks, 'Johnny are you sleeping?' Then I say 'No' and then he slaps my face and gives me a black eye."

So the teacher says to him, "Tonight when your dad asks again, keep dead quiet and don't say a word".

The following morning Little Johnny comes to school and no black eye, so the teacher breathes a sigh of relief. The day after that, Johnny comes back with a massive black eye again.

"My goodness Johnny, another black eye? What happened?"

Johnny explains: "Miss, Dad asked me again, 'Johnny are you sleeping?.... and I shut up and kept very still. Then my dad and my mum started moving {you know} at the same time. Mum was breathing heavy and kicking her legs all over the place.....
Then my dad asks me mum: 'Are you coming?' Then my mum says, 'Yes I'm coming, are you coming too?' and my dad answered 'Yes'.

They don't usually go anywhere without me, so i said 'Wait for me..."