Knockout was busy in his medic room, he is was currently trying to fix Starscream's arm due to the daily fights that Star keeps on going with Megatron, Leader of the Decepticons. No matter how many times Knockout has tried to ignore the "whining" from Starscream, Knockout just wants to tape shut Starscream's mouth.
But luckily, he finished attaching the arm back to Starscream. He is SO glad to have that Second in commander out of his medic room. Beside the common insults that Star would say to Knockout almost every day. That's a normal thing for Knockout to hear.
So right when Knockout was just going to go back polishing his sharp digits,he happens to see you and was going to greet you. Till you told him what happened just today in your life, causing Knockout to have his jaw dropped open in a mixed of confusion and shocked.
"Excuse me, WHAT?!" Knockout blurted out, his red optics glancing at you down.