When is the easiest and safest time to intervene with a customer who is drinking too much?

The easiest and safest time to intervene is early — by slowing service (for example, taking more time between drinks, suggesting food or water) before a customer becomes obviously intoxicated. Early intervention is far easier than confronting someone who is already heavily impaired, more cooperative, and less likely to escalate. Responsible service emphasizes proactive monitoring and gradual intervention rather than waiting until a customer is clearly drunk, by which point refusing service is harder and the risk of harm is greater.