When Anselm shared his story, Tock tried to stomp her feet, though with her crutches in a standing position they fully supported her weight and her feet couldn't actually reach the ground. So she contented herself with pouting and kicking the air as she said, "I missed all the good stuff? Aww, Zithnuts!" Well, she hadn't missed all the good stuff; there'd been a fair bit of excitement back at her place, too.
When he asked what brought her here, she took a moment to consider what to tell him. Part of her wasn't sure if she should reveal everything... but the other, more scientific part of her realized that the more information that was shared, the more likely they were to get to the truth behind this mystery.
She fished Boxy out and held him up with pride. "We made friends!" she declared with a grin. "Some guy tried ta kill me, an' I done nailed 'im ta my floor," she said this in a casual, conversational tone, as if this sorta thing happened every day. "My baby spider bit his foot off," this she said with a surge of motherly pride, as if sharing that her toddler had walked for the first time, "an' 'en 'is guy told me what 'ow Boxy 'ere were a commissioned project. S'posed fer ta only open fer who 'e's told. 'Ere, watch..."
She hadn't tested this yet, but based on what she'd observed of Boxy's behavior, combined with what she knew about common Directives and how to program them, she was pretty sure she knew how Boxy's commands would work. She unstrapped from her crutches and fished around on the ground until she found a pebble. She then held Boxy up before her face and said in a firm but loving tone, "I's yer Mommy now, aye?" The box opened his lid in a nod of agreement. Tock then held up the pebble and said, "'Is is Mommy's pebble, aye? Don't let nobody else 'as 'er..."
She dropped the pebble inside, and Boxy eagerly snapped his lid shut, the wires inside wrapping around the pebble and holding it snug, and the screws and clasps tightening in place.
She then set the box on the table in front of Anselm and said, "Go 'ead, give 'er a try." Nothing Anselm did, short of the extreme measures Tock had earlier used, would get Boxy to give up his treasure. But then, Tock held up a finger and looked Anselm in the eye, before turning her attention back to Boxy and saying, "Oy, s'okay baby, 'e can 'as it..." Upon this command, Boxy unscrewed and opened his lid, loosened the razor wires, and would allow Anselm to take the pebble.
"'E imprints on whoever puts somethin' inside 'im, aye" Tock explained. "An' 'at person can authenticate others what is 'llowed ta get in." She grinned. Whoever had made the box had been a competent Animator, just a bit above Tock's own skill level.
"'Is old Mommy's dead though," Tock explained. "Floorman told me, right 'fore I killed 'im..."