While cleaing the muck and crap off my bike, I seem to have stained the brand new concrete of my brand new house. I degreased the chain and sprockets, scrubbed them clean then re-greased them. Where things went terribly wrong was when I regreased everyting, I did it before it was dry. This resulted in a dripping, black, slime that instantly defiled my driveway unless immediately rinsed off.
I am planning on telling the wife (because the truth is out of the question) that an unknown scoundrel drove up the drive in a '72 Pinto, leaked 40 year old oil, and then took off down the street at full speed, approximately 25mph. It then promptly exploded as they are prone to do. I'm in the clear!! ...maybe she won't notice for a while.