Serious question. My days of running in Nikes are well over as after a while, they stink of cat piss. Well we never had a cat then so it wasn't near us where I was picking up the Dame Judy. It was demonstrated that Nike use urea as a bonding agent in the EVA in the midsole. Solution? Simple, don't buy any more Nikes, throw out the ones I had. But now I have an unanswerable question. I have some Shimano cycling shoes and they stink, I mean absolutely REEK of cat piss. My wife won't have them near the house but it can't be the midsole as they are clipless with a carbon-fibre sole. And we don't have a cat, I don't touch the ground with the soles of the shoe so can anyone shed any light on this problem? Has anyone else noticed this happening with their midsole-less cycling shoes?