That's an excellent point. Perhaps the best solution would be to leave at an appropriate time that causes the least amount of disruption and attention to one's self - and then to make sure to go to Mass at a different church that morning.
Yes. Chi-town Chief might want to try the very early
morning services, which I've noticed are usually
sermon-free or offer very brief homilies. 6 or 7
in the morning is too early for rants:)