Roger Moore tells Globe (December 10, 2012) that his surefire way of putting off men who wanted to bed him was to tell them:
"I have a strange disease which I picked up in the Far East. I haven't been seduced yet by a man."
Hilariously, his wife once overheard some movie-goers talking about an affair he was for sure having with a fellow male actor. I'm sure hearing that left her...shaken, if not stirred.