No. I like the idea of having one but it's a bit impractical. It would need something over it to keep the birds from eating the fish, and legally they have to be fenced off here in QLD because kids could drown in them (as they could in a bath, it doesn't take much water with little ones).
I had a fish pond till about 3 months ago when my 5 goldfish suddenly died.
I have a fountain over the top and it was lovely -no idea why they died however i drained the water and it was putrid on the bottom as it is a cemented pond, and now i need a handyman to clean and repaint it.
I don't think i will put fish in again though as they make it so dirty and you cannot clean it even though I have a filter.
I would love one but there is nowhere suitable in my current garden.... maybe in my next house!
Though my son demonstrated the dangers of having a pond with small children around when he ran straight into the pond at my parents' house. He was drenched in very stinky water up to his waist, very shocked but otherwise ok. And I reassured him that I had done the same thing about his age too :)