Watching animals, which emotions do you "allow" for?

When I look at a dog, I imagine his emotional landscape to be not very different from my own. I feel he experiences sadness, joy, anger, surprise, fear, jealousy, even annoyance and boredom.

For reasons not quite clear to me, however, there are certain emotions I can’t imagine any animal to be feeling. Guilt is one of them. Shame is another.

Animals I don’t feel connected to (say, an ant or even a small mammal), I can’t believe to be feeling any “complicated” emotions at all. A mouse, for example, I would certainly believe to feel fear, pain, probably anger. Sadness – basic as it seems – I wouldn’t include, unless I actively asked myself why (the hell) a mouse shouldn’t be able to feel sad.

For this thread, I’m not asking what research says unless it’s interesting ;)

I’m more interested in finding out how different our views of animals are. Thoughts?