Thanks! I was thinking the same thing about the play part. She is spayed so I know its nothing involved with her becoming a "woman" Shes def not a lap dog but shes slowly warming up to be....so yeah Ill do what you suggest. I dont want her to think Im being rough with her - that is the opposite of what I want. Shes really my baby and I love her to death.I think that when you grab for her, it's a fast motion that may look like play. You might want to do "collar grabbing" practice with her, when you are relaxed. Grab her collar while you're petting her in your lap. Grab her collar and give her a treat, then give her supper... and so on, so that she learns not to react to a collar grab.
Also, teach her to come running downstairs by shaking her treat bag, calling her, and giving her a treat ... repeating many times throughout the day. After she's reliable for 3 days, don't shake the treat bag, just call and treat.
If she is already fixed, then I don't believe that there are any biological changes that should happen that would result in accidents from a 7.5 mo pup.