Assaulting a federal agent is no joke, but nobody, and I mean nobody, should ever show this level of disrespect to a Subway sandwich. [Warning: Language] VIDEO AT LINK....................... That's 37-year-old Sean Charles Dunn, and before this went down on Sunday night he had been shouting down federal agents, calling them the worst name in the book: Fascists. The full video shows several black men laughing as Dunn gets increasingly agitated about the officers' presence. [Warning: More Language] "I did it. I threw a sandwich," Dunn later confessed to D.C. Police. Here's DC US Attorney Jeanine Pirro: Looks like Sean...