Really, it's incredible how we still haven't nailed the art of baking. No matter how many cookbooks we read and TV shows we watch, we still manage to eff it up pretty much every time. The mystery here is not really how the spoon got to be at the bottom of a cake, but more how we can continue to fail at life when we get so much help.
On the other hand, maybe this spoon was deliberately put there at the bottom of the cake. You know, like how you get a tiny little spoon packaged in with your yoghurt that's just the perfect size for both eating the yoghurt and also throwing away and eventually choking a baby turtle. Sorry, we didn't mean to make you feel bad. But you should - you can't even get baking right.