A man is driving through the desert with a penguin in the passenger seat

His gas light comes on and he pulls off at the next fuel station to fill up. He walks inside and the clerk looks at him, then the car with the penguin sitting inside and says
"It's entirely too hot out here for a penguin! You need to take that thing to the zoo right away!"
The man nods his head in agreement and replies "Yeah, that's probably a good idea."
A week passes and the man pulls into the same fuel station with the penguin sitting comfortably in the passenger seat again.
The man walks inside and the clerk angrily says "I thought I told you to take that penguin to the zoo!" The man looks at the clerk and calmly replies "Yeah I did! We had a wonderful time!"