<font color="purple"> It is my understanding that scab picking can fall into both the S/I catergory and the OCD caterogry. I believe the difference lies in the "reasons" behind the scab picking. My eldest son scab picks as a destresser and he also is a cutter, so for him it is S/I , my youngest daughter scab picking is OCD , they just drive her nuts. My dad's picking is OCD also. So it can be both. </font>