My mom's dog has a thing for really small potatoes. He won't eat or chew on them like other things, he instead carries them around and protects them like a loving mother. Then he buries them in the yard, digs them up a week later and brings the rotting potato into the house. We invariably throw it away, and he acts like we threw away his only son for about 4 days. It's sad, yet so weird.
I also gave the other dog a 9 volt battery, similar reaction to the lemon.
The subsequent related videos are a fantastic never-ending stream of this poor dog having its mind completely and utterly fucked into oblivion by the cruel and capricious pranks of its owners.
We really needed this video preview sandwiched between "Howard Stern and Bronies" and "Maxim Gamer Girl Competition: Tradechat's Finalist Pilot Video" a few days ago on the front page...