I enjoy when he blurts out some morsel of uncharacteristic darkness. This one is my favorite:
Season 12 Episode 5
"We have us a big ol' stone lives right there. Mmm, big ol' stone. He stood here for a thousand years or so and the waves have beat on him. That's how I feel: like I've been standing around for a thousand years getting beat on. You know that feelin'? Ha--gonna take the least little touch of--ha, that's not true."