If I'm not mistaken, 1 dog (must be muzzled) on a vehicle at a time.
I like suckafree's idea of the kiosk. Maybe not at every stop, but every so often or at the busy ones (duboce park, for example). Also to #16, I think it's aweful that the driver didnt' give a shit. You should complain to MUNI to get the video of the situation. Also, doesn't everyone cary a goddamned cell phone these days. Anybody else could have called in the attempted robbery...

Non service dogs are to be muzzled, period.

Perhaps when the police DO respond, have them (the police) arrest the Operator as an acessory. They were told of a crime, they ignored it and therefore helping the crime to go down. ?