Feeling Guilty

Paisley is getting spayed today. I feel so guilty making her go through that pain, even though I know without a doubt it is in her best interest. With my background in child life (dealing with the pshycosocial aspect of the child in the hospital) I feel like I should have got out all my supplies and prepared her for her surgery so she wouldn't be scared before, and she would know we were coming to get her afterwards. As I got in the car this morning. This sight was harder than ever. She just barely peeks over the window sill as I am thinking "she has no idea what she is in for today". Poor puppy!