1. Pulling the pin of a grenade with teeth
In movies, especially those about war, soldiers are often shown pulling the pin of a grenade with their teeth, which seems very easy. In reality, pulling the pin of a grenade is not as simple as shown. Soldiers usually need to apply a certain amount of force with their hands to pull the pin out of the grenade. If done in real life, there is a high chance of losing teeth while the pin remains intact on the grenade.


2. Instantly making someone faint with anesthesia
In movies, we see the act of drugging someone as extremely simple, just by applying it to a small cloth and covering the nose, the person will immediately faint and wake up several hours later. In reality, it takes at least 5 - 7 minutes before the drug takes effect, and in reality, the person affected by the drug only faints for a short period. Not to mention our ability to resist in case of suspicion of being drugged.


3. Using 2 guns at once
- In movies like Matrix, Suicide Squad, we see people can hold and accurately shoot with 2 rifles at different targets at the same time.
- In reality, it's nearly impossible to accurately aim at 2 different targets simultaneously, not to mention the recoil when firing. Many cases require using both hands to hold the gun to aim and shoot accurately, so the '2 guns at once' in movies is extremely illogical.


4. The process of conducting a post-mortem examination provides answers to all questions
- In movies, detectives or police solve cases very quickly: just by conducting a post-mortem examination and reconstructing the crime scene, they can identify the culprit. Especially in Chinese and Korean movies.
- In reality, the process of conducting a post-mortem examination only helps collect evidence and speculate on what caused the victim's death. And from the process of conducting a post-mortem examination to solving the case is a very long process.


5. Drowning people shout loudly and raise both hands high above the water
- In movies, drowning people often shout loudly and raise both hands high above the water.
- In reality, it's very difficult to recognize someone drowning because they often can't raise both hands high and shout loudly as in movies. The best sign to recognize a drowning person is both hands pushing up above the water while the rest is almost completely submerged.


6. Shooting a bullet can break a lock instantly
- Scene often seen in movies: the door is locked, someone shoots a bullet into the lock, then kicks the door open. Such actions make us feel very excited when watching, but in reality, it's not as simple as that.
- The lock is made of iron, and quite thick, there are locks that are very thick. A bullet made of lead cannot easily shoot through a lock like that. To break the door, one must shoot at the side to be able to reach inside and turn the lock, not shoot directly into the lock as in the movies.


7. Silencers make guns shoot silently
- In movies about assassins, we often see guns fitted with silencers and when fired, there's only a very soft 'chirp' sound.
- In reality, even with a silencer attached, the gun still makes a very distinct sound when fired. The silencer only helps reduce the sound intensity, not make the gun shoot almost silently as in movies.

8. People hear and speak normally while skydiving
- We often see in movies when skydiving or being free-falling, people still talk and can hear each other.
- In reality, at such heights, the wind will make our ears ring so much that we can't hear any other sound. Even when in a helicopter, people still need headphones to communicate with each other. So how can humans speak and hear normally at such heights???


9. Police can trace a call in a few seconds to a few minutes
- This is also a familiar scene to us when watching movies: police can pinpoint the exact location from a call in just a few seconds to a few minutes, with not overly modern technology and extremely simple procedures. And in just a few minutes, the police arrive and capture the suspect.
- In reality, pinpointing the address from an incoming call is not as simple as that, even with extremely modern devices, it takes hours to trace an incoming call. And of course, it's not the case that a few minutes after the phone call, the police immediately arrive.


10. A stopped heart can be restarted with a defibrillator
- This is perhaps the most absurd thing among the absurd: someone who has died, their heart has stopped beating for even several minutes, is still placed on a table and a defibrillator is used to bring them back to life. This can be seen in superhero movies or science fiction movies like Inception, for example.
- In reality, a defibrillator cannot revive a stopped heart. Nowadays, people implant defibrillators directly into the body to regulate the heartbeat for people with heart disease. The defibrillator will recognize abnormal signs of the heartbeat and emit an electrical impulse to regulate it, minimizing the danger for people with heart disease.


