What we need is a "Don't nag me, woman!" index, to calculate the probability that a woman will only own top-of-the-line items and they will always be in good repair. Does he have an ancient, broken version in the basement, a garage, or up on blocks in the yard? --> 0 probability Can he easily and cheaply buy something used and fix it? --> 5% probability Is it something he is an expert in and he's always wanted to try it out at home? --> 10% Is he generally very handy, curious, and likes fiddling with stuff? --> 15% Is he a lawyer, an accountant, or a children's book author? --> 100%