Jurors in sandwich thrower case talk about their deliberations in his trial in Washington, D.C.

The brief federal criminal trial last month of Sean Dunn , the man who threw a "submarine-style sandwich" at a Customs and Border Protection officer in downtown Washington, D.C., was only a misdemeanor case. But the courtroom was filled, and the overflow room was crowded, too.

The 12 jurors didn't realize initially that Dunn's case — and their verdict — would garner national attention.

One juror thought the deliberations would last under an hour. The juror, a longtime resident of Washington, D.C., also noted that some people in the courtroom struggled to "keep a straight face" during the trial and even laughed openly.

"It seemed to me like an open and closed type of thing," another juror said. "It was kind of ridiculous."

Dunn hurled the sandwich at the CBP officer station