Well it works for some gals, so what's there to lose. that guy was following the same attitude..."nothing to lose".
Chill man and don't react.
If you are single, this is for you:: What you can do is.. goto her and apologize, saying" I am sorry on that man's behalf, not all scientists are like him. .......and switch the conversation about something she has into or about field of internship she is in. :)