Why can men understand how to use power tools but not washing machines?  

This is something I find really odd (and yes I know it is not all men).

However, there are many men who understand how to use power tools of all sorts, some also understand how the different components of cars work. They can use TV's, VCRS, camcorders even coffee makers but face them with a washing machine, a vaccuum machine or a dishwasher they claim not to be able to use them. If you try to make them do it (as at times I have needed the help) they make such a hash of it that you might as well do it yourself (and there have been many times when I feel this is deliberate).

If you can use 1 electronic device surely you have the capacity to use others, it's just that you don't want to.

Opinions?