Public transportation is a great way to get around a metropolitan city, but subways can be so annoying at times. Delayed trains, crazy commuters, puke on the seats, and underground heat are all anger-inducing. Well it looks like adidas has a solution: place punching bags in subway stations so straphangers can "kick, punch, and trample at will” to relieve stress and stay fit at the same time. Awesome. These are only in Shanghai for now (watch the video below), but we hope to see a similar ad campaign installed in NYC.