[He's tempted to shoot more accusations his way, if only because of literally every possible emotion bubbling and manifesting in a familiar way: Frustration.]

Well quit messing around...

[The fact that Lance immediately proceeds to Mess Around does nothing to quell his nerves.]

I might have been here longer than you have, but I haven't spent my time screwing around.

[Now he's lecturing open air.]

Stop doing that-!