The new snake is roughly 3.5 feet long, was crammed in a 10 gallon tank with many, many old sheds, newspaper under him from November (absolutely covered in feces and other filth), and a water bowl that was not only empty but dry and with a quarter inch of dust in the bottom. No hides, no nothing else. I tossed the whole thing - with prejudice.
Was he aggressive? You betcha. He hit those mice *hard*. After which he took a really, really long drink and crawled into a hide.
I'll have to get out soon to get a proper sized set up for him. What he's in now isn't quite big enough, but it's CLEAN (and not a freaking 10 gallon tank!).