Bad passenger behaviour is prohibited. Examples of bad behaviour include: threatening Terravision personnel or other service users, storing baggage in a way that creates discomfort to other passengers, blocking emergency exits or the central bus aisle, using radios, noisy games, musical instruments or radio devices that disturb other users. Passengers are not allowed to eat or drink on board. Alcohol or drugs may not be taken on board nor may passengers under the influence of these substances board the bus. Terravision reserves the right to prevent passengers from boarding the bus or assist them in leaving the bus when, heedless of these instructions, their behaviour is deemed prohibited.