Ah. It's more simple pragmatism then. [Robert would be happy to have Don stay over, of course, but he figures that his brothers and father wouldn't be too thrilled.]

... I almost miss how mine looked... [Thoughtfully, as he continues to knead Don's resilient carapace under his fingers:] Did the one scute you kept from me actually remain after the experiment ended?

[For what it's worth, the mun thinks it would. After all, the Sky Bison hair stuck around...]