[MRM]

Be polite and professional but distant in your dealings with him. Set clear boundaries. Don't be overly familiar with him and don't let him get overly familiar with you. Don't sit around chit chatting with him or exchanging favors. Do not let him encroach on your boundaries, physical or metaphoric. Don't be afraid to say please leave now, I have something I want to do alone.

And hit on his wife on Facebook.