Reminds me of my agave plant. It was a prolific runner. I'd be doing some gardening up to five feet away from it and find it had put a runner out there, only found because it poked me in the finger. Even as tender as they were they could give you a good prick in the finger. Of course gifting them out to friends who wanted a large spiky plant was a good way to keep them under control. They would just come dig them up for me.