Wormwood and rot

I'm not even sure this is a bug, but Wormwood looses hunger when eating rot even thought he says "Yum" when examining it, and "Oooh... hurts" when eating it.

This could be viewed as a bug because of the loosing hunger when the quote "Yum" implies Wormwood would like rot. It could also be viewed as a bug because eating rot results in hunger loss when the quote "Oooh... hurts" implies health loss rather than hunger.

The more I think about it the more I'm starting to think maybe Wormwood's character is set up as pretending to be innocent, like, for the cactus skin portrait quote being "Hug?", not even Wormwood's that stupid... Wormwood's suspicious...