What is the most out of place thing you've ever seen in your life?

Some of you have had moments where you've seen something so out of place it just makes you stop and look at it. Maybe something like a shoe on a power line, a random photo in the middle of the road, a random shiver on a corpse, etc. What's the strangest thing you've ever seen that was just out of place?<br><br>For me, once I was biking on the highway, and I saw a little sock just sitting on the road. Like, one sock. Just one.