Keep asking questions ....
You never know, not only will you have a better understanding, make better decisions as your pet's advocate, but your questions might remind them of something or make them consider something they hadn't thought of.
I ask a lot of questions too .... I show up with my Rat Health Care book, and my rats health record book with observations, questions & ideas written down so I don't forget.
(I keep a book to record weights, meds, observations, vet visits, etc - comes in very handy when looking back to see previous treatrments and to answer the vet's questions)
As for staples .... my rats will pull out staples, chew out stiches, and chew through their skin to open incisions if glue is used ....stiches seem to work the best in my experience, but I have found giving enough pain meds (& every rat is different) to be the most important factor.
all the best to you and Owl with the vet apointment.
We will be waiting to hear ....