Have you ever played with one of those toys at the Discovery Channel store (or basically any gift shop) that are basically a plastic tube full of liquid and sparkles that you can squish around and it slips over and over itself? They kind of remind you of a sea cucumber for some reason? And when you were a kid it was fun to stick your arm all the way through it? And you could squelch it around and around and it would just keep turning itself inside out?

Did you know that a heart could feel like one of those? I didn't either.