Drano is an acid and can do serious harm. When I was little I used to want to be a doctor or scientist and mix different concoctions.
I mixed water and drano in a baby food jar and walked out the door next to the sink. My mother was weeding a garden area when it exploded in my hand. Somehow it missed her face. I had 3rd degree burns on my hands and arms which were very painful, but what a lesson I learned.
To think what could have happened is frightening.
Thanks for sharing!!! Especially with the end of the school year pranks some kids pull.