Reasons I don’t own a swing set:

1. I have no where to put one
2. I’m meant to be a grown up
3. I don’t know where to buy them
4. The constant fear of a terrorist attack by rampaging, genetically enhanced sheep clones

Maybe number 4 is just me, but this demonstrates EXACTLY what I’m afraid of.

See? No, I bet you’re afraid of terrorist sheep. They’ll attack you in your sleep. Your precious precious sleep. Little terrorist sheep.