Watching!

Sometimes I let my imagination run away with me. This spacehopper (or is it?!) appeared in our elderly neighbour's flowerbed in summer and has stayed put in this position since. There aren't many children on our street of spacehopper age and certainly none in its immediate vicinity. No one has seen anyone hopping on it and it is gradually being overtaken by plant life, so why is it here........? Whatever the answer it doesn't seem overly worried!