If in our reasonable opinion you conduct yourself on board the aircraft so as to endanger the aircraft or any person or property on board, or obstruct or hinder the crew in the performance of their duties, or fail to comply with any instruction of the crew including but not limited to those with respect to smoking, alcohol, use of cellular telephones, or use any threatening, abusive or insulting words towards the crew or behave in a manner which causes discomfort, inconvenience, damage or injury to other passengers of the crew, we may take such measures as we deem necessary to prevent continuation of such conduct including restraint. You may be disembarked and refused onward carriage at any point and may be prosecuted for offences committed on board the aircraft.