In Dutch, “haai” (shark) sounds very similar to “hi” (the English word), same for “hooi” (hay) and “hoi” (hi). Which leads to this hilarious comic I saw once where a shark meets a bale of hay ^{edit: somehow I typed bay of hale}

In Baarle-Nassau and Baarle-Hertog, which is essentially one village split between the Netherlands and Belgium in the messiest way possible, I think it’s based on where the front door is

Honestly no, never, and that feels more like a problem of not having proper cycling paths. Nobody wants to cycle on the sidewalk.