You neither know my standard, nor LZ's standard. Why do you always judge things based on your imaginations and say some bad things to people whom you do not even know, such as 垃圾房, etc? (If you really like to know my standard, I live in an apartment with housekeeping service). Furthermore, trespassing personal property is a crime. Returning unclean apartment is not. Besides, as long as the lease has not expired, no one should say that LZ will return a unclean apartment (no imaginations please).