Something to do with Joshy's strict dietary habits.
@previous (D)
Oh? And what, peradventure, does Joshy, praytell, eat?
@previous (A)
The answer, I believe, was, in fact, stated by
@OP and myself in two different languae (in which surely you are quite fluent?) ... well, admittedly the type of liquid was not specified.
(Edited 2 minutes later.)