[When Baymax starts to gently scoot the microbots aside, everything seems to be going just fine. Even with them climbing on him, the situation is still under control.

However, that doesn't last long.

He's pulled into a grip, with both his hands and feet being restrained. He could easily pull away, after all, he can lift 1,000 pounds, but based on the things he's picked up from Hiro and Tadashi about Callaghan's situation and the fact that Robert's heart rate suddenly accelerated, he believes that jerking out of the microbots' grasp could possibly worsen things.

So, he remains standing there, shackled by microbots, the only movement from him being a slow blink as he processes the situation and how best to proceed.

He speaks in his usual calm tones, though he might be attempting to sound even more soothing than normal.]

Please do not be alarmed, I do not wish to hurt you. Your leg needs medical attention as soon as possible.

[He pauses for a moment, then adds.]

I was concerned that the microbots may be obstructing your breathing, that is why I attempted to move them.

[Explaining what you were doing to a patient often helped relax them as they started to understand what exactly was going on.]