Many bus routes are designed with stopping/break points, including limiting route lengths so that operators aren't stuck in these conditions.
Yes, at 5pm in a major city, a bus driver might pull up next to a convenience stop, stop the bus, go pee, and come back. Does it happen often? Not that often, because of the aforementioned "we design routes so people aren't trapped for multiple hours" concept.
Yes, at 5pm in a major city, a bus driver might pull up next to a convenience stop, stop the bus, go pee, and come back. Does it happen often? Not that often, because of the aforementioned "we design routes so people aren't trapped for multiple hours" concept.