lucyoncolorado

In which the water balloons will not burst...

My nextdoor neighbor, her daughter and I are standing outside on the sidewalk. We have a bag full of water balloons. I pick one up and throw it on the ground, but it just bounces. It does not burst. We take turns grabbing the balloons and throwing them at each other or throwing them on the street. None of them will pop. The child becomes bored. My neighbor and I are confused and frustrated. Why won't they burst? Why did this work when we were children, but it doesn't work now?