Oh shit, Sinclair is watching.

Jack stares up at the guy and scrambles to his feet, trying to look totally cool and unruffled and un-just-got-pinned-with-ice.

Speaking of ice, though, it's still all over the floor right under his feet. You see where this is going.

Jack starts to say that yeah, he's fine, but it turns into definitely not another unmanly squeak as his feet go out from under him and he lands on his rear again.