She takes treats sub utraque specie.
OK, to explain the joke for those who are not far, far too deeply versed in Central European history for their own good . . . When the preacher Jan Huss in Prague in the 1410s raised some complaints people had with the behavior of the Church as an administrative unit, one of the objections was that people could only partake of communion/eucharist in one kind – the body (wafer), not in both kinds (sub utraque species). Those who, after Hus’s followers broke from their local bishop, insisted that laity should be allowed to partake of both elements were called Utraquists.
Athena T. Cat gets two kinds of treats. One is a special formula to help her joints. The other are the little crunchy cat nibbles most cats like. Athena decided to stop eating the joint goodies, for reasons she does not deign to discuss. Mom finally tricked her into eating them by alternating a bit of joint food with a real treat.
So, the other day, I did the same thing. The joint supplement went into the cat, followed by the “real” and we were all happy.
When Mom came back, I informed her that Athena is an Utraquist. MomRed blinked a few times, then grinned.
(Alas, I can’t find my terrifying picture of the statue of Jan Zizka, the scariest Utraquist in the Czech lands. You walk into the museum in Tabor and he’s looming over you, war hammer in hand.)
EDITED: Ah, Found it!