Evolution of excuses. Left panel: Developer proudly proclaims "It works on my machine!" while the ops guy silently contemplates career choices. Right panel: Same developer, now with DevOps skills and a suspicious sunburn, declares "It works on my container!" The ops guy's expression remains unchanged – he knows containerized garbage is still garbage, just more portable. We've successfully moved the problem from one isolated environment to another, slightly fancier isolated environment. Progress!