Oscar fetched out a pair of ductile extra-large, their floppy plastic fingers studded with grip-dots. He hadn’t expected any company on the site tonight, much less a ranking member of the Collaboratory’s board. He was taken aback to encounter Greta Penninger under these circumstances, but there was no sense in hesitating now. "Please try these gloves on, Doctor.... You see that yellow ridge of tape across the knuckles? Those are embedded locators, so our construction system will always know the position of your hands."