The usually quiet (and dusty) White House briefing room was aflutter Tuesday. "A mouse literally fell out of the ceiling in our White House booth and landed on my lap," NBC News' Peter Alexander tweeted just after 10:30am. Video followed showing reporters attempting to capture the mouse, which sought refuge in a jumble of wires beneath a shelf. It later ran under a door, into the main hall of the press area, and on into the briefing room, where it darted between reporters' feet before vanishing, reports the Washington Post. In a quip at the six-month lapse in daily press briefings, NBC News' Shannon Pettypiece said it was "the most excitement in the White House briefing room in months," per the Hill. (More White House stories.)