Nothing really wrong with what maupay did in my eyes. You do what you can to gain small advantages and if that involves winding somebody up who can be easily triggered then its an easy win you take.
Walker should have known he was going to get some shit for what he's done, and reacting in any way has just guaranteed it happens every single game now as it shows he can be rattled by it.
He's stupid to react at all and very quickly needs to learn to control himself because if he loses it, gets himself sent off or costs us points as a direct result, peps going to instantly lose all trust in him and he'll be out the team and possibly even the door in no time