My LSCSW T and I have talked about boundaries (He's asked me to stop deciding what his are for him, and instead listen to him when he says it is a good idea for me to email him.) He gave several examples of how different clients get different boundaries.

In one of his examples he tightened his boundary with a client who was repeatedly paging T over the weekend and tried to keep him on the phone with non-urgent issues. When T was explaining how he set the boundary with this other client, my jaw dropped because he sounded so stern and firm. I hadn't ever heard him speak like that before. I was so startled that I laughed.