WASHINGTON -- Worse than your phone ringing in the theater? Having it go off in the middle of your Senate floor peroration against Democrats.

That's what happened to the senior senator from Kansas, Pat Roberts (R), as he was lambasting Democratic plans to reform Senate filibuster rules Thursday.

"That's probably Joe Biden calling me right now, saying he agrees with me," said Roberts, who had cited the vice president not long before. "Can you turn that damn thing off?" Roberts told a chuckling aide.

He mimed a quick conversation with Biden, saying, "Yeah, Joe? No, I'm not going to do that," before apologizing for the infraction.

WATCH the video above.

Michael McAuliff covers Congress and politics for The Huffington Post. Talk to him on Facebook.

Also on HuffPost:

Loading Slideshow...