What is it with people from Baltimore dressing up like Batman and running afoul of the law? Well, the occasional traffic violation is OK for Lenny B. Robinson, a philanthropist who spends his hours dressing up as the Caped Crusader and visiting sick children in the hospital.

But apparently there’s another would-be Dark Knight roaming Charm City, one who prefers to avenge wrongdoers by dashing across sports fields in nary but his Bat-undershorts. That’s what happened at last night’s game between the Ravens and the New England Patriots at M & T Bank Stadium.

During the second quarter, with the Ravens closing in on the Patriots’ end zone, a man clad in only a cap, sunglasses, cape, sneakers, short shorts and a chest full of body paint sprinted onto the field and started to dance around. He evaded the initial swarm of security officers, but after about a good minute of jogging around and showing off his moves (not great, fyi), he was finally tackled by a phalanx of red-jacketed guards and Baltimore Police officers.

The streaker appears to be a man named Mark Harvey, who operates a website called Bigger Than Bullying. And, according to Deadspin, he appears to be the same streaker who interrupted an Orioles game on April 6.

On his website, Harvey gives his mission statement as such:

Bullying is a real problem in America, and I am here to stop it. We all have superpowers and it’s time to put them to use. I’m talking about the power we have to make friends, stand-up for one another, and ultimately make “bullying” just another word in the dictionary.

And in the description of the YouTube clip of last night’s fracas, Harvey appears to take credit. “I’m out here doing this for a good cause!” he writes.

Noble aims, perhaps, but aside from the Hulk, most superheroes wear tops. Including the Batman.

We’ve reached out to Harvey for an interview. If he gets back to us, hopefully he’ll keep his clothes on.