The shower head in the picture is a bit unusual because of the two screws on the right where you can adjust the head. If you loosen the one next to the wall the shower head tilts down and faces the wall (which is nice if warm water takes a while and you don’t like a cold shower) and with the other one you could make it spray the opposite wall. So it’s pretty versatile. (Or annoying if the screws can’t be tightened enough)
Usually a sign of multiprocessing/multithreading going wrong, e.g. accessing the same resource without proper locks like opening the same logfile in different processes and trying to write simultaneously. Those errors can be triggered just by reformating the code (or obfuscating in this case), thus changing the runtime behaviour slightly. Hard to find, especially since they’re dependent on the speed/workload of the machine running the code.