So I have 2 cats , both around a year old and one of them (no idea which one) keeps pooing in my houseplants ! I’ve tried cocktail sticks , pebbles and shells to no avail as they just dig them out of the way . Both cats go outside so this happens about 3 times a month but it’s driving me crazy. Any ideas on plant friendly ideas to keep the moggies away ? (I’ve thought about moving the plants to a room they don’t go in but they are heavy pits so can’t really be moved )