Pavlov's bell in reverse? This cat rings a bell to ask his human for a treat.
(Yes, I know, this is operant, not classical, conditioning... in any case, the cat and the human have definitely both learned these behaviors well!)
Yes, I'd posted another copy of the video in the comments of Hang With Friends; since then YouTube pulled the account for multiple copyright complaints. This one seems to be the original.
Well it certainly wasn't the cat who went & bought the bell to ring for treats.....hahahaha!!!!!
Yes... on that meta-level, too, the cat has Mr. Sorkowitz very well trained!