You ever get a song in your head?  It happens all the time right?
Last night at around 12:30 am I couldn’t get They Might Be Giant’s Mammal out of my head.  I even got up at one point to locate the cassette tape i’ve kept since 1992 or so.

No luck. But I found a live version today. Anyhow, have a listen. The warm blood flows through the large four-chambered heart.