Links (mostly videos) showing what happens when people or other animals don't know what to feel. These are probably cases where two strong conflicting emotions arise simultaneously... but I don't really know.
19yo sees an elephant for the first time
Young girl learns about her new twin siblings
Little girl devastated that baby brother must grow up
Mom cries over new car
Bull mastiff won't get off bed
Great Dane doesn't know what to do with gosling
Comment from reddit: "You can see the cogs whir in the Dane's head. Is this 'FRIEND', 'FOE' or 'FOOD'?"
Dogs and citruses
There are actually a ton of these, e.g. 1 2 3 4
Dogs react to human barking
Dog scared of low-fat lamb jerky