I think Avon and Somerset Police’s gripping exposés on 999 calls has been mentioned before, but they’ve moved onto YouTube now.
Among them, this classic, where the dispatcher wearily argues with the caller about the ratio between grey and red squirrels, and the lack of hazelnut trees along the M32:
While I’m sure it’s legally okay to publish these calls, I’m not utterly convinced it’s morally right: It’s clear that some of these callers aren’t fully compos mentis. It’s still quite entertaining, though… oh, and informative. Remember, kids: 999 prank calls risks lives, m’kay?