Mush!

[rebbonk]

Lost in the desert for three days, a man suddenly hears, "Mush!"

Looking up, he sees what he thinks is a mirage: an Eskimo on a sled, driving a team of huskies. To his surprise, the sledge comes to a stop at his feet seconds later.

"I don't know why you're here, but thank goodness," the man says. "I've been lost for days."

Panting, the Eskimo replies, "You think you're lost?"