The intelligence and complexities of marine life are consistently overlooked by humans. They are disrespected again and again. Octopus, stingray, lobster, and crab are just a few animals that feel every bit of pain until they die. These animals are also very aware, and can understand their situation. This causes extreme stress that leads up to the physical torture. 

There are humane ways to immediately kill these animals, yet they are not utilized. Allowing these inhumane practices to continue not only harm marine life, but humans as well. Eating an animal alive is likely to bring out or awaken homicidal tendencies in anyone who has them, or bring distress to those who didn't understand what they were doing. 

Marine life is delicious. Keep eating it if you wish. Continue to admire it. Stop torturing it. Stop farming it.