Not exactly small talk, but this is probably the best poace to put it.
https://www.buzzfeed.com/peteraldhous/lawrence-krauss-sexual-harassment-allegations?utm_term=.ir24yryRb#.tvOZbVbo4
“BuzzFeed News has learned that the incident with Hensley is one of many wide-ranging allegations of Krauss’s inappropriate behavior over the last decade — including groping women, ogling and making sexist jokes to undergrads, and telling an employee at Arizona State University, where he is a tenured professor, that he was going to buy her birth control so she didn’t inconvenience him with maternity leave. In response to complaints, two institutions — Case Western Reserve University in Cleveland, Ohio, and the Perimeter Institute for Theoretical Physics in Waterloo, Ontario — have quietly restricted him from their campuses. Our reporting is based on official university documents, emails, and interviews with more than 50 people.”