I think he should deduct points for people who sneeze/cough when he is talking; after all that is very rude.
I wish sick people would keep their germy selves home.
I can envision a scenario (like Animal House) where during his sacrosanct lecture, the whole class erupts into a simultaneous fit of sneezing and coughing...intersprinkled with plenty of gesundheits and bless yous.