tar
i've had many dead animals of all types, cats, dogs, deer, geese, turkeys, fox, raccoons, etc. i'm convience the conversation goes like this: Honey, there is a dead animal in the back yard, what are we going to do with it? I don't know, bay 8 at the car wash, i guess."
but the biggest mess may have been an accident since i don't have any enemies smart enough to think of making this kind of mess. some kind of a tar carrying vehicle pulled more than 3/4 the way into the bay and somehow slung tar all over the bay, up two feet on the wall, and out onto the parking lot. i wasn't sure how to even begin cleanup when i found it. it was still gooey soft. after scrapping, i tried every solvent i'd ever heard of and barely made a dent in it. finally out of desperation, i used some highly refined petrolium products that i would never recommend.