 Ming Pao opined that the use of profanity by the " Bus Uncle " and threatening behaviour theoretically contravened the general code of conduct of bus passengers , and that he had violated two public order laws – Section 46 ( 1 ) ( a ) , ( n ) ( ii ) and 57 ( 1 ) of the Road Traffic ( Public Service Vehicles ) Regulations , and Section 17B ( 2 ) of the Public Order Ordinance – which potentially carried financial penalties and imprisonment . 
