Is it cheap to attack someone while their sitting down? Only expierienced fighters please?

Hey so i have been doing martial arts for 3 years mma style and one guy in my old school hit me with an ipad while i was sitting down and started kinda slapping me and now he's like to me on facebook that i cant fight because he hit me with an ipad and started hitting me while i was sitting down and when i tried to get up the teachers pulled him off me i wasnt damaged at all and now hes saying that wasn't cheap i think its a move that all fighters who are true fighters consider a b***ch move and he was calling me a b**ch because he thinks somehow that he beat me up when it wasn't a real fight and its a cheap move so everyone that actually fights do you guys think its a cheap move or do you guys think he beat me up fait and square and i never had a real fight with him he just attacked me because i told him to shut up? Only expeirienced fighters please?

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