If your goal is to set a boundary, you don’t need to perform. You need to be understandable and consistent. The phrase itself is strong, but you can deliver it in a way that keeps the focus on behavior rather than blame.
One useful approach is to include three parts: (1) the limit, (2) the expected behavior change, and (3) what you will do if contact continues. That last part doesn’t have to be dramatic. It can be as practical as “I won’t respond and I will contact support if you show up.”
Example scripts for different situations
Breakup boundary (not unsafe, but unwanted contact): “I’m ending contact. Don’t call or text me, and don’t come to my home. If you need to send something, you can do it by email/text once and then stop.”
Ongoing arguments and repeated boundary failures: “I’ve asked you to stop contacting me. Don’t call me or come by my house. If you continue, I’ll block your number and document messages.”
Safety concern (you fear escalation): “Do not contact me again and do not come to my home. If you show up, I will contact local authorities and my trusted contacts for help.”
Note for clarity: These are templates for communication. Your real circumstances—especially if safety is involved—should guide what you say and what actions you take.