When we try to drink 20 butterfly milks, but only need five to be full-up on mood, we only drink five. Will you please, PLEASE put such a cap on piggies and batterflys (and sloths, when they're introduced)? ie. If you accidentally feed a pig 184 potatoes, it will only take the three it needs to create a plop.
It is maddening to lose half of your inventory to a misclick! I KNOW I can't be the only one who is frustrated by this issue.