dont you hate this?

I am really getting sick of people who talk about somthing and think its relevant when its not!!!! In meetings (at school) we allways have to talk about somthing and not naming people one person allways has to stick their hand up and say somthing completley irrelavent or they relate a tv show .Which really gets on my nerves because they make things longer for everyone else and it doesnt even contribute to the conversation does it? And even to start off what their sayin they just have to wait till "every ones quiet". I would just talk people will be quiet any way so why bother?