I'm one who'd never fling my cats into water.  I haven't viewed the video, but what I've heard reminds me of one of my cats (Comet) from decades ago.  Her name came from her habit of ranging unseen in far corners of the apartment, then every so often racing past wherever I was, only to disappear once again.  She made me think of a comet's trajectory, and their occasional speeding passes near our Sun.

One of our play habits was sliding a plastic button around inside the bathtub, where it would follow nice curvilinear paths around the banked sides.  She enjoyed it so much that sometimes when she saw me headed that way she'd race to the bathroom and leap right in, anticipating another wonderful play session.  Once--only once--she leaped into the tub to find that I'd drawn a bath about 15 minutes earlier...