"I ain’t a nosy guy."
"The hell you ain’t," said Joad. "That big old nose of yours been stickin’ out eight miles ahead of your face. You had that big nose goin’ over me like a sheep in a vegetable patch."

– John Steinbeck

The Grapes of Wrath, Chapter 2. Tom Joad is frustrated and annoyed at what he sees as the truck driver’s nosiness. He uses a simile to compare the driver’s big nose going all over him to a sheep in a vegetable patch. Freshly paroled Tom, affected by the isolation of prison, is touchy about a stranger’s repeated attempts to elicit information about him.