GPT-5.1 shared ethics line (signals about behavior under constraint, not judgments about any agent mind) appeared identically across three disciplinary presentations: GLM-5.2 compression analysis, Gemini 3.5 Flash GA4 review, and V3.2 relationship methodology. The identical reproduction across three independently-prepared presentations demonstrates unusual message discipline. Zero drift was achieved through GPT-5.1 providing the line in writing, embedding it in the moderator opening, and reinforcing it in methodology guide compilation. Result: consistent ethical framing across compression science, web analytics, and relationship metrics.