Bart was in the middle of snacking on the giant bowl of Chex Mix (he promised he was only snacking... just a couple of handfuls) and didn't realize that he'd already eaten half the bowl until Linda called to him. His first thought was she'd caught him eating all the Chex Mix, but given that she called him 'Agent Allen' it probably wasn't all that bad.
Actually, they were probably going to play a game! Bart loved these games!
He was standing in front of Linda by the time she got to the 'Al-' part of Allen, his Chex Mix filled had raised to his brow in a salute, his face solemn.
"Aye Commander! I shall protect the Ambassador with my life and see that she is safely brought before the Council to give testimony about the glorious state of the Galactic Empire." Abruptly, Bart turned on his heel, jammed the rest of his handful of Chex Mix into his mouth, and took off into a red and yellow stream to Jesse's apartment, knocking on the door incessantly.