Sam, as many of you know, is a musician. More specifically, Sam has a masters in double bass performance.
My cats, over the past couple of years, have grown used to Sam practicing an instrument, whether that's a double bass, 6-string, violin, or piano. They have also, over the past couple of years, become familiar with the metronome.
Which is why, when I came across this, I about died laughing, because it could so totally have been Techie and Nala.