The paragraph is followed by an incomplete phrase or sentence which summarizes the main idea of the paragraph. Choose the missing words of the phrase or sentence.

When Richard Wagner felt out of sorts, he would rave and stamp, or sink into suicidal gloom and talk darkly of going to the East to end his days as Buddhist monk. Ten minutes later, when something pleased him, he would rush out of doors and run around the garden, or jump up and down on the sofa.
Richard Wagner had some emotional（）