If I make a chair on my avatar and then set a VRC station with collision box to enter it somewhere else, will the person sitting in it fall off the chair if I toggle VRC station off?

I want to make a chair that's enterable only when I make a gesture but anyone already inside can still sit inside after I stop making that gesture.

Also, is there any way to force head bone to do an animation using gestures? No matter what it always stays in place.