This study is about the NHL, hardly applicable to other contexts.
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I've never seen a double minor for roughing. 2 minute minor or 5 minute major.
4 minute double minor is typically when someone is high sticked and they're bleeding because of it.
So yeah, give a co-worker a hand to the face and if the manager catches it you're sitting out of the sprint planning meeting for either 2 or 5 minutes depending.
I've seen a double minor for roughing when both players involved get the roughing minor but one player gets the double for instigating
Second one in a game is a game misconduct.