Do Sheep Get Writer's Block?

When I drive up to feed the sheep in the morning they recognize the sound of the engine and start yelling for me to hurry up. When I went over on Friday morning I was met with silence. I saw no sheep in the pastures, and heard no sheep in the barn. Are they all dead? Have they been stolen? Did they get out? There were no fences down, no tracks in the snow. I measured out the grain, pealed off two flakes of hay and went down the stairs. They were all standing in the lower part of the barn waiting for me, still silent. They may have been reluctant to speak, but they dove into the food like they had not been fed for days. I figured everything was OK.