This is a rare phenomenon, which can happen when a turd is so solid it stands up straight, only to collapse, hit the balls and destroy everything in it's path.
As a fellow Dutchman I can say that these toilets are notoriously known for causing so called 'dutch bag-slappers"
dutch bag slapper
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.