Right, so obviously I didn't wake up married to a slime monster, and it's very insulting to my dear spouse to even imply such a thing.
But I did make the horrible awful mistake of taking a prescription drug and a chocolate cordial candy in the same night.
And I woke up in my own bed, hours later, with almost no memory of the intervening time. Or the fact that it was my own bed. A slime monster marriage would have been less disconcerting than playing "this is not my beautiful house" for fifteen minutes with a warm body right next to me in the suddenly foreign bed.
Also, I forgot I had feet. For about an hour. It didn't worry me, any more than my current lack of dorsal fins does; I just didn't know how I was supposed to get out of the Bizarro Bed.
To those who seek this effect from drug use on purpose: You're insane, and it was a Crown Royal cordial. The drug I'm sure you know yourselves.