When a person cross dresses and in the closet they don't want to be found out. The person sneaks out dressed or goes out in their cisgender clothing and changes someplace else.
Having this know for those who sneak out from their home an an opportune time have you considered neighbors with surveillance monitors/cameras? Of course not knowing circumvents sneaking out where this may or may not matter depending on the climate in their area, are neighbors okay with this or not and if not is there a possibility they may lay in wait with intent of physical and/or mental injury?
The same can happen when dressing away from home.
Since for some the urge to go out dressed may be stronger than caring about others finding out yet those who do venture out truly need to consider consequences of those out there that dispise those who don't fit into traditional male or female roles.
My thought on (before transitioning) this topic is always assume someone is watching via a surveillance monitor or happens to be checking the weather out their window or simply looking outside for whatever reason and in public areas surveillance monitors are becoming more commonplace. So be careful out there.