So I've started a new school two weeks ago and I've had it pretty great , everyone has been friendly and I have made friends superfast , today I sat down with a group of guys during lunch and just had a regular chat with them , we were making jokes and kinda loud , one of the guys after finishing his food washed his hands and took some napkins and dried his hands and his mouth , after this he thinks it's quite funny to take those dirty napkins and throw it into my food and milk , the first time I just let bygones be bygones and said to him to stop and put my milk aside, he does it again this time on my food which I was almost finished with and on purpose waiting on a reaction from me , I just let it be  since there was a teacher sitting with us since the entire place , third time he does it ......... I took a large broccoli out of my plate and threw it at his shirt he gets angry quite fast and it suddenly not as funny when something is done to him . And then the guys who i was sitting with seemingly give me that's not cool look but didn't give a shit when he was bothering me  , I tried to say sorry but it's your own damn fault , but when he was cleaning off the sauce that was accompanying the broccoli these guys were like get the hell out of here and we're physically pushing me to leave . After that I just left , I honestly don't feel guilty at all about what I did. For anyone wondering these aren't the cool kid/bully friend group but just dickheads . ( These guys were honestly nice at the beginning asking me to sit with them and etc but thank you for showing me who you really are)