There is something that makes me rare: red hair! It's found in only 1 or 2 percent of people naturally. 
Cool, I have always been jealous of gingers. I was thinking of dying my hair red some time.
Red hair
Red hair (or ginger hair) occurs naturally in one to two percent of the human population, appearing with greater frequency (two to six percent) among people of Northern or Northwestern European ancestry and lesser frequency in other populations. It is most common in individuals homozygous for a recessive allele on chromosome 16 that produces an altered version of the MC1R protein.
Red hair varies in hue from a deep burgundy or bright copper (auburn) to burnt orange or red-orange to and strawberry blond. Characterized
of twenty-five years. Many have appeared in other collections. They were written while I was writing other poems arising out of whatever was preoccupying me at the time—whether it was my parents, love, marriage, the birth of my son, or baseball. Since I have also always been preoccupied with what is going on in the world, naturally, I wrote poems out of my own public concerns, though I never think of them as either public or private. Maybe the only thing that makes a poem