From Outer Space

Junnu has some strange habits and characteristics. He has the most intensive
stare of our cats. He clearly remembers and learns things. Like now when
he's temporarily separated from the rest of the clan - because of his
fertility. He won't camp down like a regular cat but every day sits by the
door, expecting to get back home.

We can't let him, because fighting would ensue. He'll get a fix soon.