[greglindahl]

Half the people in this sub-thread think it's about public transit, and the other half are talking about the company bus systems that take tech workers from homes in San Francisco to jobs in the Silicon Valley. These company buses generally have a single drop-off point, and if you look at the top of the sub-thread, the bus is dropping "all its people". This is a long-winded way of saying that the excuse is that you work at the same company as the people you frequently see on the particular bus you ride most days.