testicular ultrasound problem

Can anyone help me here? If you read my earlier post, you see that I eventually became erect and ejaculated during my testicular sonogram, which seemed to be the goal of the tech. While he reassured me that the whole thing was normal, it just felt humiliating and I'm too upset to get my results from the sonogram of my testicles, my penis (which I didn't know he was planning to do) or the sperm test he said I needed at the end. Anyone else have experience with the same problem? Is this normal? Should I go to a new doctor?