Sometimes, members of Congress get mad at each other.

And sometimes, reporters catch it on video.

The Hill's Martin Matishak found one such instance today when Rep. Darrell Issa (R-Calif.) apparently stormed into a closed hearing on Benghazi he wasn't invited to and then had to be escorted out by the hearing's chairman, Rep. Trey Gowdy (R-S.C.)

Matishak:

The pair briefly exchanged hushed words in a nearby hallway before Issa stormed off, throwing an empty soda can into a nearby trash bin.

Gowdy returned to the private session.

“Sorry about that,” he said as he went back into the interview.

Issa had conducted his own investigation into the 2012 deadly attack at U.S. diplomatic compounds in Libya last year as the head of the House Oversight Committee. Gowdy is leading a special select committee on the investigation, Congress' eighth so far.

NBC producer Frank Thorp V appears to have caught Gowdy throwing out Issa on video.

The play by play: Issa, in a tan suit, walks by the camera carrying a soda can. Gowdy, in a blue suit, tries to talk to Issa before Issa storms off (soda can in hand). Gowdy appears to call after him before throwing his hands up in frustration.

What're you gonna do?