Now I know what the expression means. Thought I'd do some gardening and was quite happily mowing the front lawn until I smelt something awful. You've guessed it - lawnmower wheel had gone over rancid cat poo pancake and I had walked into it in my crocs (used for gardening purposes only before I get flamed). Have had to hose down the crocs of shit and am not amused. Had crappy week and this just about tops it off! Any sympathy greatly appreciated.