I have to tell you there was nothing more annoying to me back in the day as when some brother felt he had to give one of those long-winded speech type of prayers.
Or how about the prayers which provide a recap of the whole #$%$^!! assembly program?
"Oh Jehovah, help us remember the 7 deadly snares that Satan sets for your loyal servants. First there is the trap of materialism, which as our speaker pointed out is deadly and deceptive. The scripture at 1st Timothy hoo hah hah..."
5 minutes later:
"And after that 7th point, Jehovah, help us remember the important points of the 6 part symposium which followed, on the evils of a college education. Firstly, let us remember the experience of Brother Weak who wanted to attend a prestigious Ivy League school...."