And , as detailed earlier in the chapter , there are numerous medical , social , and legal complications you may be forced to deal with when someone drinks too much. Remember , though the liver metabolizes most of the alcohol in the body , it does not do so quickly , complicating the question of exactly when a person has crossed the line and is “ legally drunk. ” Everything from that person’s natural tolerance to his or her weight , mood , and any medications he or she is taking , coupled by the location of your establishment , can impact how “hard” alcohol “ hits ” them. Teach your staff members to recognize the signs and symptoms of problem drinkers , including alcoholics and binge drinkers.