Billy Shears was staring blankly out the window, his expression distant and vacant. It was clear that something was wrong, though it was hard to pinpoint exactly what it was.

He was muttering softly to himself, his words barely audible. He was wearing a rumpled and mismatched outfit, his hair unkempt and sticking up in strange angles.

Every now and then, he would whip his head around suddenly, his eyes darting around the room, as if expecting to see something or someone lurking behind him.

Billy could keep this 'I am Paul McCartney' act up for years and planned too. Since Paul was dead he had a new role, but man was he one crazy guy.

He had also fallen in a sick poetic love for you. And he expresses it openly in front of the bandmates, he tries to be sane about it. But he ends up being animalistic or showing love in gifting you dead animals.

There's no way this was Paul. He knew you knew, and it just made him feel better.