Okay, I’m going to chime in on this one:
The level of “joviality” and any offense taken to it is irrelevant to our duty to attend mass. You’ve noted that this occured at the beginning of mass… so I’m going, for the sake of not delaying a discussion until you clarify, to presume that you left at the beginning of mass as well.
First, I see nothing wrong with a little bit of clean humor to put catechumens at ease. There is no rubric whatsoever which states that the mass has to be as somber as a funeral. I mean, I’m not saying that people should dance and jump around… but it’s not without precedence in judeo-christianity (since dancing is included in Jewish worship). The point I am making with that is that joviality, joy, is owed to God as much as any other element of the human experience. EDIT: To clarify, because I’m already sure this one paragraph is going to be blown out of context, I’m speaking here of a dignified presentation of joy, not one which detracts from the proper respect given to God.
But again, all of that is largely irrelevant, because regardless of the joking, or your offense, you are still bound by the church to participate in a mass and fulfill your Sunday obligation. I can’t offer a definitive answer as to whether or not you need to go to confession, but I can say the following:
Culpability (guilt for) mortal sin is based on the following:
- Missing your Sunday Obligation is grave matter?
- Did you know that missing your Sunday obligation is grave matter?
- Was there is a significant impact to your freedom of will to prevent you from going to another mass?
Again, I can’t presume to judge your spiritual state, but I can say that in that circumstance no amount of “emotional upset” would keep me from finding another mass to attend if at all possible (and if it were a Sunday evening mass with no others to follow, I would have stayed). If I were in that situation and failed to find another mass to attend, I would certainly confess it…
but this presumes that your level of being upset did not significantly impact your free will to go to mass (only you know just how impacted you were).