Intentionnally missing turns

Hello,
I know that deadbeating is forbidden.
But what about intentionnal miss turn?
Like I am in a game, and someone miss 2 turns, then come back, then miss another turn.
And that guy is active in other games at the same time, and he dont miss turns !
I want to know in general, not only in the case I explained, is intentionnally missing a turn against the rules?
I think it should be
I know that deadbeating is forbidden.
But what about intentionnal miss turn?
Like I am in a game, and someone miss 2 turns, then come back, then miss another turn.
And that guy is active in other games at the same time, and he dont miss turns !
I want to know in general, not only in the case I explained, is intentionnally missing a turn against the rules?
I think it should be
