If nothing else, that ear-flick is a dead giveaway to the identity of the bot in front of him. Unfortunately, it's also a dead giveaway to something churning through his old partner's head. The next words just confirm it.

"Hold on," he says, holding his hands up. "Last thing I remember is... well. You were off stealing the Matrix and I was watching the fort. Sort of."

Nothing about sparks. Unless he meant Shockwave's...

"Definitely not disappeared, though."