A passenger with terminal renal failure relies on a highly specific peritoneal dialysis machine every night to stay alive. British Airways check-in staff refused to allow the 20kg device in the cabin on two separate flights, insisting it be checked into the hold. It was damaged on the outbound leg to Heathrow and lost entirely on the return to Rome. The consequences were immediate and potentially fatal. On arrival at Heathrow with a broken machine, the family scrambled for a loan unit and spent hours in A&E so the patient's blood could be monitored. On the return flight, the machine simply never appeared. The family waited at the airport until 2am before being told to go home without the equipment that keeps the man alive. A hospital loaned another unit. The original device arrived three days later with its protective case unsealed and critical internal components disconnected. BA's policy, shared with most airlines, allows vital medical equipment to travel free in the cabin provided it fits under a seat or in an overhead locker. The dialysis machine exceeded those dimensions, and if the flight was full, hold stowage was the airline's only option. But a seat could have been purchased for the device — a fact BA only disclosed after the damage was done. If spare seats existed on either flight, the airline could have accommodated it without additional cost. The systemic failure is not one mishandling incident but two consecutive ones affecting the same life-critical equipment, compounded by a complaint process that produced nothing but auto-generated acknowledgments for a month. The family heard nothing substantive until the Guardian's consumer desk intervened. BA's resolution offer — £300 in e-vouchers — lands somewhere between insulting and absurd given that the patient faced potential medical crisis on two occasions in two countries. The airline has since agreed to convert the vouchers to cash and discuss a larger "gesture," but only after press scrutiny forced movement. The structural problem extends beyond one family. Airlines routinely handle oversized medical equipment through the same baggage systems that lose suitcases, with no flagging protocol that distinguishes a dialysis machine from a golf bag. The complaint pipeline funnels life-threatening failures through the same queue as lost luggage claims. There is no escalation mechanism proportional to the risk. This case exposes the gap between airlines' stated medical accommodation policies and their operational reality. The policy exists on paper. The systems, training, and complaint architecture needed to make the policy functional do not.