ignore them... if you do not response, they would get tired.
I doubt so since it didn't didn't stopped for 3 months. However,
I'm amazed TS tolerated it for 3 months.
If its me,
First few time: do nothing just say stop or something
If it's continue: Fk off/Bring up to teacher
If its still doesn't stop after giving them warning: Whacking
time
Anyway TS, what is your current education level? Secondary
sch?
My advice: If bringing it up to teacher doesnt help, start
whacking. That's how you deal with assholes.