Summarize the following:
If you're holding an umbrella, your keys, or even a hot coffee, these can all serve as helpful tools against an attacker. If you are unable to escape the attacker and you need to defend yourself, assess what you have that you could use. For example, if you have your keys in your hand, hold them in your fist and push one of the keys between your middle and index finger to create a claw. This will make your punches more effective. If you have an umbrella in your hand, hold it like a bat and get ready to hit the person with it like you'd hit a baseball. If you're holding a hot cup of coffee, loosen the lid and throw it in their face to incapacitate them while you escape. A hard kick to the knee or groin can stop an attacker in their tracks and give you time to get away from them. Kick them hard with the bottom part of your foot for the most impact. If the person is close to you, a quick jab to the throat or eyes with your outstretched fingers or keys may be the best way to stop them. Hold your keys in your fist with 1 between your index and middle finger like a claw or extend your middle and index fingers and tense them. Then, thrust your key or fingers at their eyes or throat with a quick jabbing punch. This will hurt and they should stop momentarily to recover. Run away while they do. The nose is a good place to hit because it sticks out and you can break it easily with a well-aimed punch. If you're very close to them and they're about the same height as you, then headbutting them may be more effective. Thrust your fist or forehead at their nose quickly. Run away while they're recovering from the blow. If the person has their arms around you, stomp down on their feet as hard as you can with your heel. Then, use your elbow to jab them in the stomach as hard as you can. Continue to stomp on their feet and elbow them until they let you go. Cup both of your hands and draw your arms back as far as you can. Then slap your hands together over their ears hard and fast. The air that your hands trap and push into their ears will temporarily incapacitate them. This move may cause someone to lose consciousness if you execute it properly, but don't hang around even if they do lose consciousness. Go somewhere safe and call emergency services for help. in the back of the neck if you're behind them. If you happen to be behind the person, aim a quick, hard punch at the back of their neck. This should be enough to knock them out if you punch them hard enough. Make sure to run away even if the person is unconscious. Call for help when you are somewhere safe.

Summary:
Use whatever you have in your hands as a weapon. Kick your opponent in the knee or groin like you're kicking down a door. Jab the person in the throat or eyes with your fingers or keys. Punch or headbutt them in the nose as hard as you can. Stomp on their feet and elbow them if they're holding you. Clap your open palms over their ears at the same time. Punch them