I think eating any of them is hard. Well it's not really the eating I find difficult I suppose, Its knowing that no matter how trusting, friendly, intelligent or characterful they are ( yeah ok and how cute). I know that I cant justify keeping them as pets. So no matter how much I would love to keep them they have to go.
My ram lambs are the the friendliest, confident, responsive, cuddly chaps that you could hope to find and continue that way into adult hood but I end up selling them or butchering them because I cant have fields full of rams who spend all their times cracking each others skulls.
One day though I will have one of those smallholdings that has lots of cute but non productive pets and that will definitely include some pointless pygmies.