A really easy way to assign it to the poly group, sense its on the outer edge, turn on the group editor, then click the button for 'Wire Frame' display mode (where its the seethrew wire frame) when you select the group there on the end of the shoulder where that randome little guy's hiding, it will asign both inner, outer, and back polys into the group ;) speeds things up a bit when little problems like that accure.