All trains in Tokyo have ads in the cars. They line all walls and very neatly numbered for easy replacement. Most have lots of animated stuff and often you can't tell (unless you can actually READ the ad) what the ad's actually advertising. This ad, as you can see, hangs down from the ceiling. This is normally perfectly fine as the bottom of the ad is about 3" from the top of most Japanese heads. The exception comes when some tall Westerner gets on the train and he's about 6'3" and grazes the top of the train not to mention the entire hanging ad. If I'd been brave enough I would've taken a picture of that because it was pretty funny!