hahaha Opposite is so bad at faking being a pet and would probably have actual panic attacks at that because he *killed* an owner for trying to make him into a pet before, and if this owner wants that too--well, Matt really isn't a match for Frank at all, not with his obedience reflexes and Frank being wary, heavily armed, and young and healthy, unlike Master Robert.

And maybe Frank actually reacts nicely/calms down at the fact that Matt killed Master Robert to protect himself? That's a fairly reasonable not-criminal reason to kill someone. (And Matt doesn't even let himself think about it, but at least part of the reason was because Master Robert had quite literally had a younger house-slave girl beaten to death two days earlier for dropping a chicken on the floor. In front of Matt. who at first tried to soothe him, calm him down, and got beaten for his troubles. Master Robert was the same master who had a slave's back whipped off for smiling at his sister (out of friendliness and also because the slave was a child) and definitely would have had the slave's hands cut off for touching her hair.)