No stranger to wacky patents, Google’s latest idea is to put a layer of what is essentially glue on the front of cars to help protect pedestrians who may be struck by autonomous vehicles.

The glue will act like flypaper, the Guardian reports — if a pedestrian is hit by a vehicle, they will stick to the car and carried until it comes to a stop. This way “both the vehicle and pedestrian may come to a more gradual stop than if the pedestrian bounces off the vehicle,” the patent explains.

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