Could you make it so that 'Feed' is never the bottom choice on the Piggy dialog? Or if not, then at least make them do something funny when you feed them 250 allspice, like maybe it disagrees with them and they fart a cloud of pepper spray.
This is what happens sometimes when I'm with a group of pigs. The pigs move and the enters that I've queued up go to the wrong pig, one who has 'Feed' at the bottom of its dialog.
'Feed' gets chosen, then Allspices, because they're always at the beginning of the food list, then I feed them 250 of the durn things because 'the whole stack' is the default on the amount chooser dialog.