Suppose I start at 11AM. When the bus that I take over arrives 15 minutes late, I have to play catch up. I am essentially doing my "follower's" (the bus after you) job. So I am doing more work with a schedule that is designed for half the passenger load. So I fall further behind. Mind you that this is a safety sensitive job. The bus does not fly and you cannot tell the elderly to HURRY UP as they are already doing their best to manage. And of course, when people get on the bus, they wonder where the hell I have been all day. "I have been waiting FOR YOU for the last hour!"

Then when the Follower catches up to me, folks generally DO NOT want to ride the second bus. So I pick up even more people, making me even more late. When this continues, there may be 3 or 4 buses back-to-back-to-back. Then people get even more angry and wonder what the heck is going with MUNI.