whycome

is it customary to "bless" people when they sneeze?

is sneezing a particularly heathen thing to do? Or are we simply thanking those kindhearted sneezers for hurling minute airborn projectiles into the communal abyss for us all to share? Or perhaps sneezing is just such a horrendous experience that we feel sorry for all those recently subjected to its evil tortures?

I wonder.