It could also be a personal motive against the vampire.

It's a mistake for one politician to judge the personal motives of another.

But he would never be sure how much other motives, secondary and personal, had swayed him.

He had less personal motives as well, of course.

What were the personal motives of the chief participants in an event?

I've even a personal motive to use my best efforts.

That word deciphers nothing of his personal and political motives.

He suspected a personal motive behind her need to nail the man.

But he may also have had a more personal motive.

He'd not thought of his actions as serving personal motives.