I was thinking of a couple of things for this sequence:

The reactions to Asterix’s evil soup in Asterix and the Laurel Wreath (Goscinny and Uderzo, 1971)

and the goofy expressions in the freakout scene in Haredevil Hare (Chuck Jones et al, 1948)

and the drug reactions in Hare Remover (Frank Tashlin et al, 1946)

I may be stealing the “etc…” gag from Asterix and the Laurel Wreath when this happens again later on in this story. We will see. It was a lot of fun doing these goofy little paintings of Bailey!