A few of my pet peeves were:
The PO/Cobe knowing that he needed to have an elders meeting after the meeting but not telling any other elders. Humm, but his wife knew. His family would show up at the hall with two cars so his wife and children could go home, but the other elders and their families were stuck waiting and kids having homework. It never ended up a "short" meeting.
Another beef I had, was an elder having the bookstudy in his house, (god I'm old), but would not turn the air conditioning on until the meeting started and it was set very high. (He was cheap or could not afford to run the air conditioner) If you were the reader or the conductor, he insisted that you wore your suit jacket, although it was HOT in the house. Oh, I just loved the Texas summers.
We got directions that the elders meetings were supposed to be limited to two hours (?, bad memory) and the PO/Cobe just kept going as if the council did not apply to our elders meetings.
What were yours?