What does Chongqing dialect mean by touching night screws?

In Chongqing dialect, "touching the snail at night" means doing things or going to work at night. It describes the phenomenon of shyness and silence in public at dusk or at night. It can also be used to describe doing things without a plan, and you will start to worry when you are in front. This statement originated in Sichuan and Chongqing, which is a very popular statement, and later spread to other regions with similar statements.