Troleu's demo is for anyone who's ever wanted to physically kick someone out of a moving bus
There is no option in bus conducting sim Troleu to warn fake pass holders or ask them to leave. You simply exit the conversation and immediately start booting them unconscious, then open the nearest door and either toss or kick them out, at which point they fly off down the street like a crisp packet in a gale. Here's a link to a Steam page with the demo. Have a great day.
Sometimes, passengers enter the bus with the sole goal of assaulting you. You do a little punching minigame, and boot them off down the street too.