Well, I went to Noah's Ark, 'America's Largest Waterpark' today with my brother and his 9 month old baby. While we were drying off / tanning at lunch his wife took the baby into the baby playground and happened to sit directly under a 100+ gallon barrell of water which fills up and dumps every 10 minutes with a warning siren.

She apparently did not hear the siren and had no clue what was coming and the baby looked stunned for a couple of seconds but then overjoyed. It was the definition of 'riceless'