Alien invaders adapt the same form of humans to learn their weaknesses but grow to like them, and when their masters demand they report in, they tell them that the humans are dangerous and smash the communicator. They live out the rest of their lives as human beings.
An artist who's been working with a publisher for a year suffers from severe claustrophobia. His boss refers him to a psychiatrist who puts him under hypnosis and asks him to draw his earliest memories, but they only go back the one year that he's been working for the publisher. He hires a detective to do a background check, but he can only find documentation a year old. When he puts the artist under the deepest possible trance and demands he draw the earliest possible memory, he produces a drawing of a man lying in a casket.
A reckless driver enjoys being the 'road hog' so much he designs mirrors to magnify the expressions of his motorist victims. A hitchhiker berates him for his behavior and tells him someday you'll "meet a bigger hog than yourself." The man doubts this, as he considers himself the biggest. During the test run of his mirror system, he sees an immense hog just about to turn the corner. He swerves to miss it and runs into a tree, killing himself. Around the bend, a farmer picks up an ordinary pig that had wandered into the road and claims "That man must have really loved animals in order to die just to avoid hitting this pig."
An American reporter investigating stories of a vampire in Hungary meets his end when he realizes that the castle he's been poking around in is itself the vampire in disguise.
A fantasy writer is visited by aliens who wish him to teach them human emotions so that they can observe humans undetected. He is afraid if they learn the history of people, they will destroy civilization so that space travel does not threaten them. The last two emotions he teaches them are ambition and power, hoping that they will destroy themselves.
An East German plots to murder his business partner and then get help from an Allied soldier stationed just across the border, but the soldier is actually a statue and does not respond to his plea.
Martian gun-runners arm select humans with advanced weaponry hoping that they will battle amongst themselves and leave them as easy pickings for an invasion force.
A man in a labor camp plots his revenge against a co-prisoner responsible for his being there, but has the ill luck of following him into the gas chamber on the day of his scheduled execution.
Now that she's twelve, a girl's parents think she is too old for her dollhouse, so they put it in the attic. Ten years later, when the woman is married and moved back into the house, she is surprised to find the dolls appear as if they have aged ten years.
An explorer has a theory that ivy is plotting against mankind. They put him in a padded cell, where ivy sneaks in through the bars and strangles him before anyone notices.
A soldier wants his buddy to meet his sister but he has already fallen for a girl he's met. As he travels from place to place he sees this girl and her family repeatedly, but each time, she gives him a different family name. When the war ends, he returns to the houses he ate with these people, but they are empty and the neighbors claim no one with that name ever lived there. Confused, he goes back to the states and meets his buddy's family, who look just like the people he encountered.
A young couple starting out find a well on their property that appears to grant wishes. When the woman's wish for a million dollars comes true, she has second thoughts, and wishes that the well's power be broken. The telephone man tells her that she could not have received the phone call notifying her of the inheritance because he hasn't connected the phone yet. The young couple resolve to make their way together and earn everything they get.
Scientists build a calculator that gets bored with them and transports itself to another planet with an advanced civilization that will pose more interesting questions.
When a nurse gives an ambulance driver a medal of the patron saint of travelers he is surprised to hear from people at his destination that the bridge he crossed to get there had been washed out hours ago.
In order to avoid a costly war, a marriage is suggested between two rival factions, but the man finds the girl homely and is not interested. Many of the king's court ply their skills at making her beautiful but none succeed until the sorcerer's apprentice is given leave to try his magic. The war still occurs, however, as the girl marries the apprentice.
A mysterious salesman offers a product that can do anything, but his customer decides that his ordinary contentment is better than the risk of the unknown.