Times have moved on, they are professionals so their club give them the training required to cope with it. I‘m sure you’ve noticed the abuse players are faced with when taking corners, I’ve not seen many lose their cool.So where does it stop , coin players and referees, racially abuse players, its all fine because its on the pitch? Best not do it in the first place and if you do and the player you are giving shit to has a go back then I say fair play to him.