People usually have one of those masks handy as you are expected to wear it if you have a cold, to avoid spreading germs.
As above, people are actually considerate and mindful of spreading their germs to other people. Unlike here where bloke sitting next to you coughs/sneezes with phlegm hitting everywhere.
![Roll Eyes :rolleyes: :rolleyes:](/styles/default/xenforo/vbSmilies/Normal/rolleyes.gif)