I remember my friend was at my house when I was about 14. We made a bunch of water balloons in the bathroom sink. We made this huge white one and it was so big, we had to set it carefully on top of the toilet. My Mom saw it and freaked out, worried it would explode and make a mess. My friend was like "It's okay, it won't do anyth-" BOOM! It burst and water went EVERYWHERE.