You know you're in for a long session when someone's debugging your code with their entire forearm resting on the desk like they're settling in for a siege. The classic "let me just look at this real quick" that turns into a full ergonomic commitment. They've gone from standing over your shoulder to pulling up a chair to now basically moving into your workspace rent-free.
That posture screams "oh boy, where do I even start" mixed with "I'm going to need coffee and possibly therapy after this." Nothing quite humbles you like watching someone's body language slowly transform from confident helper to defeated detective as they navigate through your spaghetti code. If they start bringing snacks, just start your resume.
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