Why does a man in his house unmistakably find a switch, and in a stranger for some time he searches for it

Why does a man in his house unmistakably find a switch, and in a stranger for some time he searches for it, even if he has already been there more than once?

1) In a familiar environment, the conditioned reflex constantly supports.
2) In an unusual environment, the conditioned reflex fades.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.