This bus always seems to have the most bat shit crazy drivers. They will stomp on the gas throwing people around and then hit the break so hard that everyone goes flying forward. I seriously thought that someone was going to break their neck one day. Get your ass on the bus and grab a seat or hold on to whatever you can would be my recommendation... assuming you don't have a death wish.
The cable car operators on the California line can be obnoxious too but I tend to take that rather than the 1 california. Oh and if you're a reasonably attractive female, the cable car operators will probably be nicer to you. I'd rather chance having a car crash in to the side of it than be killed by the bus driver.