Need help

Dreyana

So my son for the last two months been sticking his finger in people butt he learned it from some other kid at school at first we tried talking to him about it now I’m at the point where he gets his hands popped every time he does it... he now had his 2 year old brother doing it ... it’s driving me completely insane ... what do you guys recommend me do.... with this shelter in place I’m really trying to stop this before they go back.... I’m at my wits end...

ps please don’t come on the comments making a horrible comment about my child...