hung jury likely, page-115

The term "reasonable" has a variable meaning in the case law of various jurisdictions.
You can go back to what the worker going home on the bus would say if you like, but it's a meaningless term on which each and every judge will put his or her construction. The trolley has not yet been built to carry all the case histories to which the resourceful barrister might have resort if his/her purpose is to befuddle a jury.