Detention - let me just check my calendar

Daughter's geography homework given across the half term was due in today.  Apparently not many people actually did it.

"Boy, where's your homework"
"Sorry Sir, I was too busy"
"You will stay in this break time to do it"
"Sorry Sir, I have maths detention this break time"
"Tomorrow then"
"Ahh, no, that's RE detention, I could do lunch time if that suits you?"
"BOY! I have plans for lunchtime, it will be an after school one for you"
"well could we avoid Wednesday, I'm booked in for Science detention"

I am absolutely serious.  At least the child is getting some valuable time management experience!