It seemed that response just sent Megatron right back to laughing again. It wasn't as if it was some great, amazingly entertaining thing, but he did know who the head of the Prime's security detail was, and could well-imagine his reactions to what Optimus was describing, which was mostly why it was amusing.

"Ah, and from what I've understood, he's the type to be most... ah, embarrassed by the latter, and not actually having yelled and berated you." Shaking his helm and smiling, Megatron glanced out of the window again and it wasn't hard to orient them and while he wouldn't necessarily assume to know where they were going just because of the surroundings...

Their earlier conversation, and where it broke off, made a possible destination in the direction they were flying quite obvious. Turning back to stare at Optimus with an arch, narrowed look, Megatron tilted him helm in a part-nod towards the windows... And what was outside.

"You must have gone digging, if you know where I worked before the areas." The statement was flat, not forbidding or even demanding, but still with its own edge. He was mostly phrasing it like the bait it was to see if Optimus would fall for it.

Not that he wouldn't know where they were going soon enough, anyway, but he would still like to know beforehand.