This has been posted to YouTube -- two guys videotaping a Houston Walmart, and their subsequent confrontation with security.
From the uniform, the security guard seems to be a moonlighting deputy constable, but we're not sure.
Things get a bit out of hand as both sides make some tactical mistakes, but there are some highlights, like when the security guard says he's going to call for a backup unit.
"What are they going to do, take me to jail for knowing the Constitution?" says one of the video guys.
The information accompanying the video says "the men where later hand-cuffed to be arrested but released after another cop came to their rescue."