Drug addicts can still be lovable, funny, regular every day people. They do have some characteristics; however, that make them stand out just a bit from others, if one knows how to recognize them. First, a person who is an alcoholic or drug addict can maintain a regular career, but not forever. However, they are quite probably the person who is using up their sick days and personal days, as well as vacation days, right off the bat by calling in on Mondays because they are not quite over the partying and drugging they did over the weekend.