Why are cats scared of Cucumbers?

Cats are curious creatures that like to explore, but why are they scared of cucumbers? Scientists have been wondering also so they came up with the idea that they are scared of anything that they don't understand like a vacuum cleaner. They also think it has to do with them being solitary animals which will probably freak you out if you turned after eating raw meat like a savage in the willderness and saw a giant cucumber wantimg to eat you.