Annoying

I was at a Family Constellation this weekend. One of the participants was a very annoying person, giving longish comments and explanations on whatever was going on / was important for him.
When it came to my constellation, he also gave his usual comments, one of which was extremely helpful, probably the most important part of the whole day.
Moral of the story: I should be more patient. Probably a good way to achieve this is to be conscious about what he/she is talking might be very important for a third person.