Sneezes shoot out microbes every which direction. Why don't we say, "Damn you"? ?

HA! well they use to say spirits game out of sneezes so in order to keep you from being harmed of corrupt they say bless you. funny but thats the story i heard. they do spread diseases and increase the risk of you making someone sick but damn you seems pretty harsh, ill stick to bless you. i think its safer. i dont want to get hit in my face for telling someone damn you.