Why is it that anything disgusting subbornly sticks to shoes, tyres etc with fanatical determination only to detach itself onto your carpet at the first opportunity?
I rode through an enormous pile of something nasty a while back, and despite religiously scrubbing my bike the said contaminant refused to budge. I have to park my bike in my bedroom as there's nowhere else to put it and I didn't want Richard the third to be liberally applied to my floors.