Breath Holding

People hold breath for different reasons. Swimmers hold breath while swimming underwater. Spectators hold breath when a batsman hits a high one and a fielder runs to make it to the expected spot of landing to catch the ball. A guy holds breath when he pops the question and the girl is about to answer.
In hospital, we hold breath when:

1. a baby delivers and is yet to cry.
2. someone is doing a cesarean section and is struggling hard to deliver the baby's head.
3. a Resident doctor is trying hard to pass a trocar and cannula into a patient's tummy during laparoscopy.
4. a junior anesthetist puts in a lumbar puncture needle for the nth time and everyone bends down to see if the cerebrospinal fluid escapes out of the hub of the needle.
5. we pass by the college wash room.
6. we pass by the central garbage dump.
7. we pass by a cat or dog poo on the staircase, especially when someone has already stepped on it.
8. when someone sneezes in the hospital corridor without covering his/her nose and mouth.
9. when someone coughs nearby in the hospital corridor without covering his/her nose and mouth.
10. in the elevator jammed with people, some of them going to the RNTCP center, where they treat patients with tuberculosis.
11. a Resident doctor calls in the middle of the night and keeps on talking about some patient in the past tense, but does not reach the part when something happened to the patient.

In case you cannot make out why we hold breath for any of these happenings, feel free to write to me.