Anybody notice some UFC (cage) fighters are absolutely terrified of outside the cage altercations?

I've seen many fighters look absolutely fearless / in the zone inside that cage (they do it for a living so obviously they're not "scared"), but display a lot of anxiety in backstage / outside the cage altercations / faceoffs.. are they just blacked out during the fight?

Masvidal keeps the same energy in and outside the cage.. same with Robbie. Askren and GSP are good example of guys you could tell want no smoke unless it's in a sanctioned fight inside the ring (not saying getting inside...

Anybody notice some UFC (cage) fighters are absolutely terrified of outside the cage altercations?