content: Maybe. But this wikipedia says there were 1,268,979,546 passengers on Great Britian trains per year. Assuming 20% of them have iPhones and that 10% of them charged it on the train 10% of the time, at your price that comes to $12,689,795.46pc per year (if my math checks out).  I get your point, but there's more at work than just 1 phone. A bunch of phones together can get pretty pricey and add an electirical drain.  Plus the second arrest for “unacceptable behavior” for “becoming aggressive” suggests that the report of   We were called to Camden Road London Overground station on Friday 10 July to a report of a man becoming aggressive when challenged by a PCSO about his use of a plug socket onboard an Overground train.  was probably correct. This person would probably never have gotten in trouble or arrested, but acted an ass. That probably has more to do with this than the actual phone charging incident.