At 11:51 p.m., my mother sent the message that changed everything: I was no longer welcome. My sister added a heart, like that made the betrayal softer. So while they slept, certain they had pushed me out for good, I opened my laptop and began fixing the mistake they never saw coming.

We laughed. Humor, I’ve learned, is what you hang between devastations so you can climb down safely.

In June, I taught my first workshop. Ten people showed up. A woman whose daughter had moved back home “just for a month” seven months ago; a man whose brother borrowed his identity like a sweater; a nurse who kept picking up shifts because everyone else called in “sick” when vacation packages got cheaper. We sat in a circle that didn’t require confession. I passed out worksheets with boxes labeled ASK, CAPACITY, CONSEQUENCE. We practiced saying no without footnotes.

“Boundaries aren’t walls,” I said. “They’re doors with locks and working hinges. You decide who comes in. You decide who has a key. You decide what time the door closes.”

At the end, the nurse stood by the coffee urn and cried the kind of tears that don’t need tissues. “I thought I was mean,” she said. “I think I was just tired.”

“You were,” I said. “Mean people don’t look this relieved.”