That sound like something that would happen in our yard!
My sweetie-pie believes that if he puts something somewhere 'safe', it is safe - this after raising 3 kids! I can't tell you how many single edge razor blades I've removed from 'safe' places that kids can easily see and reach! I'm particularly cautious about razor blades. When I was about 14, my Dad put one (double edge) in the soap bar and left it there. I was next up for the bathroom, wet my washcloth, picked up the soap without looking, and, "unbeknownst" to me, the razor blade, too. Imagine my horror when I saw the razor blade while rinsing the washcloth out AFTER washing my face!!!! God was watching over me that morning!
I hope you feel better soon. We'll all be thinking of you, so let us know what the Dr says.