ANY man or boy who does this in my presence is given instructions on etiquette and health hazards. My son and his friends know that THIS is THE one thing I WILL NOT TOLERATE. I will tough out swearing, swagger, rough housing, spilling, lots of noise, even back talk with a quiet but firm correction. IF you spit in my presence, prepare to be lectured for an excrutiating length of time. I will tell your mother, your grandmother, your girlfriend, your wife, your boss.....I'd do anything to stop someone from this base habit. No excuse. Disgusting. Classless.