I've been involved in Scrum that became that or during crunch time somebody gets a stupid idea that there should be one at the beginning and another at the end

I've been involved in Scrum that became that or during crunch time somebody gets a stupid idea that there should be one at the beginning and another at the end of the day. 15 minutes really should be an absolute max as in after 15 minutes everybody just leaves regardless of how late you started. In fact you should have no more than 50 minutes per 5-day week for scrums so that anything going over 10 minutes starts counting against the rest of the week. I call them roll-under minutes. Too often the team gets too big or unnecessary meeting jockeys start attending and it all goes to hell.