Wombats Can Kill Predators by Crushing Predator's Bottoms

Andy reveals that wombats can kill predators by crushing them with their bottoms. They do up to 80 to 100 a day or per night rather and they're for display purposes effectively. It's supposed to be signs to think it might be some sort of like status symbol to sort of put your poo in a high tower which you can't do because they're squares as they're square.