Short story for you.
The giant freighter clicked, spzzt, and groaned with contraction, the noise loud and disrupting as the two stores clerks exited. The words carried a long way due to the fact they were shouting to be heard over the noise of the cooling ship. The aggrieved under-clerk angry that they had singled him out to repay the losses.
How could they make him pay for the disappearing supplies when they couldn't catch the thief. To blame him for the theft of four hundred pounds of meat products, he would be the size of the proverbial barn if he had eaten that amount.
Definately a union matter agreed the second clerk, nodding in sympathy, relieved that he wasn't being blamed. The disappearance of the meat was a mystery. Traps had been set, alarms installed, sensors of every kind placed and nothing. The rumours of ghosts were debunked as what ghost needed to eat physical food, and so they had chosen at random and placed blame on him.
With forty years of seniority they were going to regret their choice. He went straight to the union and set the ball rolling. The union took one look and grounded every ship in ninety Galaxies. The corporations howled, but knew they were caught by the short and curlies. They all called the Spinnaker Corporation and recalled all loaned ships, personnel, equipment and said all bills Will be paid by the end of the month.
The Spinnaker Corporation shareholders howled when they learned of the disaster. Five minutes after landfall the first irate call was made, the switch crashed by sheer numbers. This sent the wrong signal to the investors who thought they were being fobbed off. They descended on the offices and made the chaos unmanageable.
Back at the spaceport, the shadowy figure went unnoticed as it attached itself to the underside of the cargo hauler. The exit of the facility was fortuitous, as the hauler was the last vehicle to escape before the lock-down. The measures were too little, too late.
Into the city proper, the shadowy figure left the underside of the hauler. It had waited until a quiet, dimly lit area had been entered and the vehicle had slowed, then catlike had disappeared into the urban sprawl. The shadow blending into shadow that no-one saw.
The first thoughts had been to seek shelter and access to food. The first was found in an abandoned factory, a few miles from the exit site. It had taken a considerable length of time due to the stealth that was necessary to stay hidden and unseen. The second now became imperative, the time since the last meal was measured by days.
The pangs of hunger, and the need to find nourishment were soon going to make for lack of control, this would spell disaster, the begiinning of the end. A source had to be found this day or trouble would descend rapidly. The seeking took on new urgency as time passed. There had to be a ready source of food close-by.
The suddenness of the discovery was enough to stun.