For session 0 (aka character creation day) someone brings an uninvited guest and the group is already at max.
So this happened. I got to everyone else's character first intentionally and by the time they had to leave the "guest" hadn't even gotten started.
They made a sarcastic remark about the night being fun and I responded that I didn't even know they were coming and that we only had time for character creation.
I didn't intend on any more for the group, in fact we lost 1 player already and I am perfectly happy with that as it helps me handle the already large group (7 including myself, I'm brand new at GMing).
So I awkardly had to inform this to the person who brought them later on that I intended only for the people I invited to show up and that I wasn't planning on adding more to the group.
Here's the kicker. They're related and this has happened with other game nights.
Anyone dealt with a similar situation with uninvited guests? How did you handle it?