This is a brand new joke.

When do walruses stay away from Venice?

When do walruses avoid eating carrots in Venice?

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When it’s time for a root canal, of course!

However, due to several commenters being much more adept at this than I, I’ve combined all their brilliant answers into this new one. Ready?

Ahem.

When do walruses avoid eating carrots in Venice?
Venice time for a root canal in Tuskany.

Thank you and good night.