I've actually experienced this. One of my bps is very head shy. He doesn't mind handling just doesn't like it when you get too close to his head. He had a retained eye cap (and a lot of stuck shed) on him when I got him from his previous owner. I soaked him a few days after having him to get the stuck shed off and that was the one and only time he was completely content with me getting near his face. I VERY gently used a wet wash cloth to remove his eye cap. It's almost as if he knew I was there to help him out.