Does it bother you when people come to work or are in public places when they have a cold (the common cold - sniffles, sneezing, etc.)?

Does it bother you when your co-workers come to work when they’re sick? Does it bother you when you are in public places (store, restaurant) and people are sick, sneezing, sniffling, etc.?

At work, would you tell someone you’d prefer them to stay home with their illness, or do you feel it shows that someone is a trooper for coming in to work?