Knowing that the first couple of times you cough that the phlegm isn't yours.
What is the likelihood it will be a hairtest
there are 27 people in the room but on 53 eggs, you know what that means, someone is missing an egg.
They're not infallible
Grow old!
Cotton mouth
Seeing your ex.
Because they drink to much coughee.
cough* *cough*
Coughing up someone else's phlegm
The first couple of times you cough, the loogeys aren't yours!