I had a bus skip my part of the route in US.
They literally took a whole different route that skips over the stop sign I am waiting at so they can get to the last stop faster and clock out.
I was using dart which gives live maps view of where the bus is.
Also sometimes busses malfunction and can't work but still go through all the stops, just don't let people in. Dart doesn't tell you they malfunctioned. You have to see for yourself when bus rolls by.
As far as drivers are concerned, someone's phone wasn't working so they restarted it to show the ticket. Our driver called the police for "delaying the bus." Entire bus had to walk to next stop.
Yippeee