It's not hard to do inadvertently, especially if you are going for a game that deals with heavy topics. Something that feels to be about the same level of serio

It's not hard to do inadvertently, especially if you are going for a game that deals with heavy topics. Something that feels to be about the same level of seriousness to the DM may hit too close to home for a player (and one reason for X-card like systems on top of discussing stuff before the game, is that the player themselves may not realise themselves until they're in the moment)