The ding-dong ditch remains one of the greatest pranks of our time. Since the 19th century -- possibly earlier -- it has been celebrated for its hilarity.

Unfortunately, it really only works as a joke when a human being is doing it. When it's a non-human pranker, like this slug in Germany, it doesn't quite have the same ring to it.

Here's the scoop:
Inhabitants of an apartment block in Bavaria, southern Germany, who called police to investigate the relentless buzzing of their doorbells late at night were surprised to find the culprit was not a teenage prankster as they had suspected, but a slug.
The slug had been sliding up and down the bell plate, creating havoc in the building and tearing angry residents out of their beds long after midnight when they could not sleep for the noise.
These poor folks thinking their doorbell's getting rung like:

When it fact it's actually more like:

That's gotta be embarrassing!
Of course, getting woken up over and over again in the middle of the night is infuriating, even if it's by a mollusk.
The residents discovered the slimy prankster when "the ringing continued even after the arrival of two police officers, despite the fact that no one was at the door and a motion detector had failed to activate."
Investigators "discovered the slug traversing the door entry panel," making a positive ID of the suspect.

Of course, police couldn't resist:
In a statement, a police spokesperson in Schwabach, Bavaria, said the animal had 'been brought down to size, taught about its territory boundaries and placed on a nearby stretch of grass'.
I just hope those poor folks can get some sleep now!
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