Can people be held responsible for their emotions? Or, why can't people be held responsible for their emotions?

I think adults can be held responsible for their emotions, on the ground that we have good evidence to think that people can learn to feel the right emotions at the right times for such emotions (and not to feel the wrong emotions, when it is inappropriate to feel those emotions). Few of us are masters of this, of course, but that doesn't mean that we can't (or shouldn't) be faulted when we feel inappropriate emotions, or don't feel appropriate ones.