Why shouldn't kidnappers kidnapp school children

The school bell had jus rang, it is the start of a new week for Miss Madeline Thompson as she is a primary school teacher at North Lenehan Christian Community School. Madeline Thompson is 28 years of age, she has taught year 5 for the last 3 years at the local school and Miss Thompson has a boyfriend his name is Derrick Long-bottom. Miss Thompson is a member of the town church, which she attends every Sunday morning and evening.
“So now year 5, who hasn't done their homework this week? I need you to put your hand up so I can record it in my book, you know the punishment for not doing the weekly homework don't you class” said Miss Thomson.
“Yes” the class replied as if it was the hundredth time she had told them what the punishment has been.
“So raise your hand so I can see please, three people this week that is a very good result getting better by the week” said Miss Thompson to the class.
“I will now ask you to get your maths metals books out a...