Bubbling Fountain
Vandalism aside, and yes yes it costs money to clean the filters and change the broken parts because of it, I always snickered, on the bus ride to college every day, when I saw that someone had poured dish soap or laundry detergent into the fountain next to the bank.
It was always a surprise, and I always looked for it. Sometimes the bubbles were only just noticable as froth foaming on the surface of the agitated water. Sometimes the bubbles were so numerous that they spilled over the sides of the fountains, onto the pavement, into the street.
One early morning, the busload of people were amused by the sight of bubbles having streamed entirely down the street, for about four city blocks. There was so many large bubbles that the lower half of the fountain was obscured in the stuff.
