A detective can only solve a case once he has been suspended from duty. Although in the 20th century it is possible to fire weapons at an object out of our visual range, people of the 23rd century will have lost this technology.
Any person waking from a nightmare will sit bolt upright and pant.
If you need to reload your gun, you will always have more ammunition - even if you haven't been carrying any before now.
Medieval peasants had perfect teeth.
Most dogs are immortal.
Mothers routinely cook eggs, bacon and waffles for their family every morning even though their husband and children never have time to eat it.
No one involved in a car chase, hijacking, explosion, volcanic eruption or alien invasion will ever go into shock.
Once applied, lipstick will never rub off - even while scuba diving.
When a person is knocked unconscious by a blow to the head, they will never suffer a concussion or brain damage.