A boundary in relationships with people, jobs, pets, or other obligations is the limit of what you will accept from them. It is also the limit of what you will give to them. These limits can be flexible depending on circumstances- your and theirs.
Do unto others as you would have them do unto you. This saying in its basic form is part of many faith traditions around the world. It has been recited countless times in an effort to promote peace among people and among nations. My question to you is- How do we want to be treated? How do we desire to be done unto?