Bus Vannin is reminding passengers to respect drivers and their fellow passengers.
It says there is zero tolerance for abuse or assault, with incidents potentially resulting in a court appearance.
Passengers are also being warned that poor behaviour could cause delays or cancellations to bus services.
The message comes with a reminder that drivers are there to get everyone to their destination safely.
Middle candidates face voters tonight
Hospice calls on Islanders to Sparkle for Christmas
Final cruise ship visit to the Island today
Isle of Man postal vote applications close tomorrow
Manx actors join Billy Elliot cast
Church awarded grant to replace heating system
Charity rejects financial support from DHSC
Douglas nightclub reopens after major makeover