Each of these eggs contain several hundred eggs. On the one hand this is really creepy yet on the other hand it's part of nature. You are bound to see things when you live in a house with a big garden. Sadly in this case the homeowner will have to replace the controller as it no longer works.
Now I am curious to know what critters you have encountered in your garden? Comment bellow and let me know. I myself have seen black widow spiders in my worm bin. I have also seen black fly larvae and the common snail.