In my city, it is common courtesy and sometimes expected that you say 'thank you' to the bus driver when getting off at your stop. It's not too much of a stretc

In my city, it is common courtesy and sometimes expected that you say 'thank you' to the bus driver when getting off at your stop. It's not too much of a stretch to the scenario where bus drivers are tipped, except that most bus riders (at least in the US) tend to be poor. Maybe we'll have bus drivers tipping well behaved passengers instead lol.