Wickedness! School teacher asks her pupils to brush their teeth with sand

Now how would you react to this? As seen from a media source, decided to share with you guys as well, For me there's nothing to describe as being wicked as this. LIB reader witnessed this, It was Said that this teacher at a school somewhere in Badagry, Lagos asked her pupils to use sand to brush their teeth as punishment. An eye witness confronted her but the lady refused to stop. How pathetic is this? Can someone fire this woman? He didn't say the name of the school but said it's somewhere in Badagry if anyone knows it. The school may be called Zino Great Academy.