I hate to open the same can of worms but:

http://www.bild.de/BILD/news/bild-english/celebrity-gossip/2008/12/11/german-tv-farmer-hansi/accused-of-animal-abuse-by-peta-for-giving-fingering-chickens-to-orgasm.html

Should it be considered abusive if he's pleasuring them sexually...? I'm pretty grossed out by it and kind of think, yeah. The whole "sucking off a dog" argument in the last epic fightdown between _vikram and katti didn't really wash with me.