Lungs - air - breath - and dog poo

Bang! I have just crushed a fly and taken her life. How easy it is to convert from life to death.
When a human dies, often the lungs are involved. The breathing once gone: dead.

Our lungs are hard-working organs. Until the age of retirement, they breathed in and out about 500 million times. The bronchi receive 10,000 litres of air daily.

Of course, throughout a smoker’s lungs, this would be just air and smoke. The lungs of a healthy adult have more than 300 million alveolar cells, which spread out to cover an area as large as a football field.

One question: For example, if a doggy would poop on this sports field. Very close to the goal of
course. The goalkeeper will surely be annoyed by that. What do you do in this case?

Answer: The doggy off the pitch, and the dog pile was cleaned up.

Something similar would be the effect of a cigarette on the bronchi. The smoke adheres to them, and when "the dog is not chased away", the lung will be full of shit soon!