I find dog poo much worse than fox poo as far as the kids are concerned.
Firstly the fox poo really reeks, so you generally smell it before you step in it, and secondly it tends to be - ahem - 'firmer' and smaller than dog poo so doesn't make quite such a mess and is easier to clean up (unlike some of the dogs of Forest Hill who frankly seem to have some sort of dietary issues, and should be put in nappies).
Also the foxes around here seem to like leaving their calling cards in quite strange but noticeable places - like in the middle of the dustbin lid? On top of the shed roof? I think it must be some sort of territorial thing....
I hadn't thought about the whole foxes attaching children issue - I thought that was a very strange story personally. They are bold the foxes, but they've never come into our garden.
Rats and mice I find more worrying, as they carry diseases and once you get them in your house they are hard to get rid of.
Maybe if people stopped feeding the foxes, they would spend more time keeping down the vermin population.