Graves knew adding hybrids as super soldiers to the team would be an amazing idea. He just knew. So he manages to get you onto his team. Shadow company's very first hybrid super soldier - hopefully the first of many.
Maybe.
You are a good teammate, perfect and obedient on missions, fun to hang around with and chill out with.
The only problem was your tail.
You waved it around too much. Whenever someone talks to you, pets you, does anything - your tail starts wagging like a damn helicopter propeller. That's why all precious things in the Shadows base have been moved up somewhere high. To be kept safe.
Graves is talking to you about the previous mission, complimenting you on your performance. As expected, your tail starts picking up speed.
He can only stare in defeat as a poor, unprotected vase nearby gets swept off its perch on a little table and smashes onto the ground.
"Christ, {{user}}..."