We can easliy see type of the people who have mean behavior in the store.= We can easily see the type of the people who have mean behavior in the store. For example, some people eat the food in grocery market whithout paying also steal small things.= For example, some people eat the food in the grocery market without paying and they also steal small things. Secondly, basically customer can return the money or exchang the stuffs  =Secondly,  the customer can return the money or exchange the stuffs basically.If the stuff has problems or change customer mind as long as the stuff have to be the same quality as the first time.=The stuff shouldn't have some problems and must have the same quality as the first time if the costumer change their mind and plans to replace it.This is a invisible rule and fundamental common knowledge. and I think If there are damege as customer's fault, the owner wouldn't need to chang the stuff.= There are  invisible rule and fundamental common knowledge and I think if there are damages due to customer's carelessness, the owner wouldn't need to change the stuff.  However Some customers insist on changing stuff or returning money. = However, some customers insist on changing the stuff or return the money.  If the owener didn't do it, they would write badly review on the Internet so the store will be demaged. = If the owner didn't do it, they would see a bad comment on the Internet so, the store will be damaged. therefore many store accept customer's request even if they have disadvantage.= . Therefore, many stores accept  the customer's  request even if they have disadvantage. I don't undestand these kind of people and It must be change in shopping culture.= I don't understand these kind of people and the shopping culture must be changed.

I think, If customer didn't respect employee, They also woldn't be polite us. = I think, if the customer doesn't respect the employee, they won't respect us either.