Review of Ittehad elevators engineering

When the elevator doors open there is only one other person inside it, a homeless man with electric blue sunglasses and six plastic grocery bags filled with rags. "Close the doors, dammit," he yells as soon as we step inside. "Cam't you see I'm blind?"
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From the back, the homeless man shoves between us, his bounty rustling in his arms. "Stop yelling," he shouts. though we stand in utter silence. "Can't you tell that I'm deaf?