We've all seen this person, regardless of the form of public transportation you take, there's always a ton of these people. Ah, the people who decide their bag deserves to have a seat to itself, prominently next to its owner, rather than the other commuter, who paid five dollars to ride the train. Yes, this ones for you, folks who have a briefcase so special that it would be a tragedy for it to have to sit on your lap for the 15 minute ride.
I'm sure that fine leather bag is much better served absorbing the plethora of stuff that may be on the seat of a train or bus, than on your lap. What now you're reconsidering putting it on the seat? Don't worry, I'm sure those seats are cleaned hourly. So have no fear, your $200 bag is riding first class!