I have posted the Poison Control Center telephone number <span>(800) 222-1222 </span>on the front of the fridge. It is very important to keep all drugs out of the reach of small children because some drugs can harm them. You never know what drug and dosage can hurt a child.
The student could tact all items in his backpack and through the sensation reach the cell phone. So he should touch and feel what could be the cell phone.