No, and one can argue why should they?
I don't know why they should, but they do!
I was reading the case of a school bus operator in a magazine recently who put passenger perception at the top of it's agenda. It rarely suffered delays or cancelled services, vandalism was also rare as the pupils and drivers knew each other and often parents knew the longer serving drivers too! One monday morning the workers arrived at the depot to find all the batteries had been stolen from all vehicles, rendering the whole fleet unservicable.
They apologised to passengers and told them why, they did not recieve a signle complaint. One parent actually rung in to offer help as he knew the owner of a commercial spares dealer.
The fact I take from it, look after your passengers and when you have it difficult, if you tell them, they'll understand!