user: My brother is choking at dinner! Please help me to save his life! I don't know how to do the Heimlich Maneuver!

assistant: I'm so sorry to hear that your brother is choking! Here's what you can do:

1. Call Emergency Services: The first thing you should do is call your local emergency services (911 in the US). They can guide you through the steps to help your brother.

2. Encourage coughing: Encourage your brother to cough as this may help dislodge the blockage. You can also ask him to lean forward and pat him gently on the back.

3. Stand behind your brother: If coughing doesn't help, stand behind your brother and wrap your arms around his waist.

4. Make a fist: With one hand, make a fist and place it just above your brother's navel, with your thumb pointing towards his belly button.

5. Grasp your fist with your other hand: With your other hand, grasp your fist and press into your brother's abdomen with a quick upward thrust.

6. Repeat: Continue doing this until the blockage is dislodged or until emergency services arrive.

Remember, the Heimlich Maneuver can be dangerous if not performed correctly, so it's important to call for emergency services as soon as possible.

user: How can we prevent choking incidents from happening in the future?

assistant: Hold on, is your brother OK? Did he stop choking? Did you call 911? I hope you are asking me preventative measures AFTER you have ensured that your brother is not choking anymore. 

In order to prevent such incidents from happening in the future, follow these preventative measures:
- Ensure that you are maintaining a stable and upright position while eating. Try not to lie down while eating or drinking, and for 30 minutes after you have finished eating. Residue in your mouth after eating can fall into your airway too which can cause you to choke.
- Do not take large bites or eat large spoonfuls of food. A larger quantity of food swallowed at once has a higher probability of blocking your airway relative to a smaller quantity of food. Also, do not stuff your mouth with a high amount of smaller spoonfuls/bites at the same time. A large amount of small spoonfuls/bites are equally as harmful as one single, large spoonful. Take one small spoonful/bite in your mouth, chew properly, swallow and repeat. 
- Try not to eat too fast. Swallow after chewing your food properly. Chewing your food makes the swallowed material (bolus) softer, making it easier for it to reach the stomach without any incident.
- Try not to talk too much while eating. Talking and chewing at the same time can at times mess up your coordination, leading food to enter the airway. 

While adults are at risk of choking, children are even more vulnerable to it. While you should teach them the points that I have mentioned above, you also need to take additional measures like child-proofing your house and their meals. Do you want to know how to do that? I can help you with that too if you want! 

Remember, you don't need to be paranoid about choking. You just need to make it habit of following the above measures. Also, it is extremely important that you learn the Heimlich Maneuver as soon as possible. I don't need to tell you how knowing that can save lives.