Add Yahoo as a preferred source to see more of our stories on Google. You know the image from TV and movies – the delinquent, defiant student slumped over his desk, fast asleep in class. But some ...

HOUSTON, Texas (KTRK) -- Many children are now back in the classroom, and if you're a parent who gets a call from the teacher saying your child is snoozing in class, watch them closely. It could be an ...