1. Still, learn from experience: and the moral of this story is: don't mix business with pleasure. BNC
2. Look, I know that one shouldn't mix business with pleasure, but if I asked you again, would you come out with me? BNC
3. The occasion was ostensibly to mark the birthday of his wife, Barbara, and was an excuse to mix business with pleasure, since invitations were issued not only to personal friends of the chairman's but also to various luminaries of the art world, and a few favoured clients. BNC