Question about when you take your birds to the vet

I'll be taking my girl for her well birdy check up tomorrow. What I was wondering, is if the vet has to do something your bird really dislikes, do you stay in the room? I've always stayed in the room. The visits have always been routine and she's great with people. I've thought about how, if (in her opinion) she has to be "manhandled," like for a nail trim etc, that my being there might make her think I'm part of the evil scheme. She tends to hold grudges and scold me if I move her away from an area she shouldn't be, or when I get to close to her food dishes. I don't give in to her demands when it's something that has to be done. With her dominant personality, if I gave her an inch, she'd take a mile, and there are and will be things that have to be done whether she approves or not! My inclination would be to stay in the room with her because I'm a somewhat over protective mama. I was just curious as to what others do. Thanks in advance for appeasing my curiosity 😊.