Just as we are often moved to merriment for no other reason than that the occasion calls for seriousness, so we are correspondingly serious when invited too freely to be amused.
Forgiveness doesn't mean forget what happened. If something is serious and it is necessary to take counter-measures, you have to take counter-measures.
If there were really serious consequences if I did not accept, then of course I would do whatever was necessary. But in general I really prefer some freedom.