Twitter user @MasoneDylan said he'd run onto the field if his tweet got 1,000 retweets. It did, and he did, and reports say he got quite the thumping from Citi Field security.
We'll update when we get video, but for now here's a pic from AP photographer Kathy Willens. It sounds, though, like this fellow can expect another beating when he gets home:
Update (9:57 p.m.): We now have a GIF:
Here's his complete sequence of thoughts leading up to the act of interrupting the MLB All-Star Game. It's compelling.
Oh, and his girlfriend chimed in: