It's a public secret that "Winkel 137" (EN: "Shop 137") in Rotterdam is a front for illegal activity, most likely drugs. It's never open during normal hours, the shelves are barely stocked, and no one ever really enters the place. It's been there for as long as I can remember though.
If you look at the place in Google maps you can even see some weird ducts coming out of the wall on the above floor, presumably to clear out some of the vapors coming from the shop.
As men get older, it becomes more challenging to initiate urination. As a result, the distance the urine stream travels at the beginning becomes unpredictable.
On the other hand, towards the end of urination, the stream becomes weaker and may cause post-dribbling. This also increases the chances of hitting the toilet seat.
Failing to clean the toilet seat afterward is simply pure rudeness though.