I went into one of the largest men's clothing stores in New York City, a few years ago, and asked for a suit, describing exactly what was wanted, but not mentioning price. The young man, who purported to be a salesman, said he did not believe they carried such a suit, but I happened to see exactly what I wanted hanging on a model, and called his attention to the suit. He then made a hit with me by saying, ''Oh, that one over there? That's a high-priced suit!'' His reply amused me; it also angered me, so I inquired of the young man what he saw about me which indicated that I did not come in to purchase a high-priced suit? With embarrassment he tried to explain, but his explanations were as bad as the original offense, and I started toward the door, muttering something to myself about ''dumb-bells.'' Before I reached the door I was met by another salesman who had sensed by the way I walked and the expression on my face that I was none too well pleased. With tact well worth remembering...