If you have to deal frequently with toilets with flush sensors at your office (or really any public restroom), you've probably been grossed out by them flushing (and spraying water at you) before you're ready.
As an adult, I learned that handle-adjacent sensors can be dealt with by hanging TP over them, and won't flush until you remove it as you're leaving the stall. Wall sensors (like one infamous office toilet I deal with) can be handled with a post it note placed over the sensor; I keep some at the office just for this purpose. In an emergency, sometimes spit-dabbing a piece of TP can stick it to the wall over the sensor, but this isn't as reliable.
Just get into these habits when you use sensor toilets, and you'll never have to worry about disgusting flush spray from prematurely flushing public toilets ever again.