Sheep hybrid!ghost who hates his hybrid side, despises being such a weak domestic animal.
He spends years keeping his hybrid side locked up tight, suppressing his herd instincts and keeping his wool-hair shorn to the root. Ghost hasn't vocalized since roba, everyone believes him to be human. The perks of being low-presenting, it seems.
Then you transfer onto base, a sheep hybrid who makes no effort to hide that fact.
For a while, ghost staunchly avoids you. He doesn't like the way his instincts start screaming about the flock just because a fellow sheep is nearby.
You must smell it on him, because you're constantly trying to talk to ghost. Tail wagging, fluffy ears twitching when you catch him in the hallway. Always followed by a dopey smile.
The thing that really catches ghosts attention is your wool. Thick and grown-out, you wear your wool with pride. It turns you all soft and round edges. Secretly, ghost likes your wool. He stares at you across rooms when your back is turned, wondering if his own wool would ever be that long.
Only for you to come back from leave with practically zero wool.
For a startling, horrified moment ghost convinces himself he somehow convinced you to hide your wool with all his staring. You smile at ghost, all starry-eyed and soft. "I made you something, sir."
From your bag you pull a long wool scarf.
It's clearly made from your wool, still smells of you. You bahh happily as you wrap it around his head and next, creating a sort of impromptu wool coat of his own "now we match!!"
...if ghost spends his whole day with his nose tucked into the scarf, wondering if being a sheep is so bad...that's his business.