"Penguin in Australian desert" joke
So there's this penguin driving across the Nullabour Plain (that's in Australia) and it's a *really* hot day - and that's bad news for a penguin.
So, the penguin is driving and saying "Sheesh" a lot and wiping his brow with his flipper then the car starts acting up! Bumpity bumpity bump...
"Oh great", thinks the penguin. To his relief, there is a service station not too far further along. He drives in, parks his car, hops out and waddles over to the mechanic.
"Can you have a look at my car?", says the penguin, "it's making a funny sound." "Sure" says the mechanic.
"Sheesh," thinks the penguin. "It's so hot!. I think I'll go inside to the air conditioning." So he waddles over and goes inside. He mooches around, flicking through magazines, killing time.
He decides he'll buy an ice cream to help him cool down. Then he goes back out to the car. "Sheesh," he says as he waddles back over the tarmac.
"It's really hot." And he's making a real mess of the ice cream, on account of it being so hot and him being a penguin and only being able to hold it with his flipper. He spills more of it over himself than he gets in his mouth.
He gets back to the car and comes up to the mechanic who's leaning over the engine. The mechanic looks up at him and says "Hmm. Looks like you've blown a seal.
"Oh no," laughs the penguin, "That's only ice cream."
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