The part with Roger getting flushed down the toilet really reminds me of the similar scene from The Thief and the Cobbler; the animation isn't exactly the same, but both Roger and the Thief do that great stretch effect when they actually get sucked down.
Is it just me, or is one of the caricatures in the Brown Derby photo in Roger's wallet that of Richard Williams?
I still marvel at how Richard Williams nailed Droopy. The Droopy part got laughs and applause from the audience.
When Richard Williams' name appeared on screen, I cheered.