It earns a blink. Obviously Heero wasn't the sort of person to be so easily shoved, and his pain tolerance had always been exemplary— that was strange. Whatever had happened there was either deeply troubling, or...

"It's likely nothing," He hopes. He has to assume. It's such a small lapse, and with Duo spending so much time ribbing Heero, it was inevitable that he'd eventually find an inopportune moment somewhere, someday, "Nothing about this is normal to begin with."

Why should Heero's state be any different? Except, of course, that Maxwell seemed normal enough, and Wufei didn't feel any different... but Heero was special. Perhaps something here had done something to him.

"Ignore it, for now."