I went to my grandmother in a new building. My grandmother is old, almost 90 years old, but still healthy. The apartment has been repaired, everything is new and pleasant. I went to the bathroom to wash my hands. I open the valve with cold water - it does not rotate. He pulled stronger and didn’t turn again. Accidentally turned to the other side - easily turned, the water went. Not cold but hot. I crashed, relieved the pressure of the hot, I opened another valve (by logic, it should be with cold water, although it has a red "shelter"), already in the right direction. It does not turn! I had already gone through this quest, so I immediately turned back. Okay, there was a cold pressure! Adjust the water to the desired temperature. And here I got! It is extremely difficult to regulate the water when the shells are confused and one of the valves (at the time I didn’t remember which one) rotates in the opposite direction. That is, you can, of course, but you need to be morally tuned and be prepared for this rebuff. And to jump into the bathroom and quickly rinse your hands, thinking of "something of your own", will not run out unambiguously. So I succeeded. I twisted there and there several times, splashed, washed with the water that was available. I go out, I ask my grandmother, and what does she have to do with cranes? He said that the sanitary equipment was installed. I did not immediately look, and then, while waiting for them to reinstall, a few days tortured and decided - let it stay as it is. Not to relax. At my age, he says, gymnastics for the brain will not hurt again.
Everything has been working so for several years. Grandma is still alive.