When setting boundaries during verbal de-escalation, what is a specific phrasing technique, beyond a simple 'no', that clearly communicates consequences without escalating the conflict?

When setting boundaries during verbal de-escalation, a specific phrasing technique, beyond a simple 'no', that clearly communicates consequences without escalating the conflict is using an 'If...then' statement focusing on your own actions rather than directly threatening the other person. For example, instead of saying 'If you do that again, I'll call security', which can be perceived as aggressive, you could say 'If this continues, then I will need to step away and re-evaluate the situation'. This phrasing focuses on your own behavior and avoids directly challenging or threatening the other party, making the boundary clearer without necessarily escalating the conflict through direct confrontation. This subtly communicates the consequences of their actions while minimizing the potential for a defensive or aggressive reaction.