After my divorce, I turned to computer dating services, which provided me with names and phone numbers of women whose profiles seemed a good match for me.  Nervously, I picked up the phone and called the first woman on my list. 

To my great relief, she was quite pleasant, and I actually mustered up the courage to ask her out.  "I'm sorry," she replied firmly.  "I just can't do that."

I was stunned.  "Do you mind my asking why not?" I asked.

"Because," she said, "I'm your wife's divorce attorney."