An employee is absent for three days, returns, and hands you a handwritten paper from a doctor you don't know, without a stamp, dated the day they returned. Is it valid? Do you have to pay for it? Can you deduct it? This scene repeats every week in any Argentine SME, and the answer depends on something almost no one is clear about: what the LCT says about justifying an absence and what document supports it. Here I break it down piece by piece.