I remember one time one of my friends gave these foil balloons to my sister and she insisted on keeping them forever. One night I heard a loud noise like someone opening a trash bag and I prayed to God to make it stop and let me know what the sound was. Immediately, I realized that one of those gosh darn balloons had gotten stuck in the gameroom fan, and the noise suddenly stopped. I got up the next morning and went into the gameroom and the balloon was on the floor with a giant hole in it.