Ran into a creep at the IIT hospital today

So I visited IIT hospital today and met this guy. I barely mentioned that I did my postdoc in Israel and was looking to become a assistant professor here. BIGGEST MISTAKE!! shouldn't have even talked to him in the first place. He completely cling on didn't leave for a sec. Too creepy! Luckily I escaped from the Apollo gate while he was stuck at the main gate. I hope I never see him again