There might be some sort of time machine or something at the Verizon Center.
They apparently have these new machines, as reported by DCist, that fill up a beer from the bottom. This allows the concession operator to simply put down multiple cups and have them fill up! From the bottom. The machine stops when the cup is full.
You have to see it to believe it:
The cups apparently have a refrigerator magnet in the bottom (which can be advertised on, of course, and later removed and put on your refrigerator), and somehow the beer pushes up the magnet to fill up the cup and then it comes back down so all the beer doesn't come out of the hole in the bottom when you pick it up. Though we think it might just actually be magic.
You can see a view of the beer filling up from the top here.
The benefit is that beer can be filled much quicker (and with spilling less) meaning shorter lines at the Verizon Center. The company that makes the machine claims 44 pints can be filled by one person in one minute--though that's the record and the CEO of the company can only fill 36 in one minute. Multiple people can fill up to 56 pints in a minute.
You can order one for your own home here (we knew you'd ask).