Selling Kids?

Last Thursday, I weighed my pupils and measured their height. Everyone cooperated but there's this little boy who was hesitant to get weighed. When I called his name, he refused to be weighed in but since he has no choice but to follow my orders, he stepped on to the weighing scale with a slight fear in his eyes. And then this young boy whispered and asked me this astounding question:

"Ma'am, are you going to sell us that's why you're weighing us all?"

It was hilarious. I wonder where he got that idea but it made my day and his parents' too.