To sit??? I could have put my lab mutt in a sit stay or had her lay down and all would have been fine. What about the ones who have no manners?? Or the ones like my whippet who just does not lay her delicate bones on hard floors(that includes sitting)

I am practicing this at the moment and sitting her in a chair for softness(and to get her off the ground which is just bare wood. As soon as I get up to take the photo, she leaves.

If it is this hard with my own, how hard is it with someone elses?? I know there has to be a way to do this, so, could those that are good at this tell me?