What would you have done about inappropriate behavior from a pediatrician?

I'm a little shocked and confused....and I'm not sure what to do. My son is sick and earlier this evening I took him to a local night clinic, well as I was waiting in the exam room the pediatrician walked in and started touching his groin area as if adjusting himself or so I umed. It weirded me out a bit but I dismissed it. Then he grabbed the stool and sat on front of me which is when I clearly could see he had an . I was shocked but VERY uncomfortable and didn't know what to do...I wanted to run outta there! Anyhow when he stood up to get the ear abd throat device he grabbed himself again, he then excused himself and shortly after he receptionist came in and gave me the prescription. I'm still shocked! I didn't say anything then but my sister n law urged me to report him. I did feel very uncomfortable but I'm not one to really speak up. I don't want n e problems but I also don't want n e one else to go through the same thing. Wut do you think??