what does "I was all left feet" mean？
Dugger was far more sensitive- than he seemed. He was painfully aware of his appearance—big, red-necked, tough, unfeeling; a poster of police brutality. His incongruous horn-rimmed glasses didn't help. They gave him the look of an angry owl. He had never been able to correct the impression, partly because he was so inarticulate. Repeatedly he had stood in this hospital with stricken relatives in need of a word of comfort. He had none to give. He didn't know what to say. Afterward he would explain to his Episcopalian minister, "I was all left feet."