When someone is so adament about something that they can't refrain from mentioning it in every sentence....

ie: "i hate liars.. don't ever lie to me.. i can't stand liars.. lying is my biggest pet peeve"

They're probably very closely related to the problem.. Or rather.. Are what they Hate.

in this case: A liar.

Careful, kids. The world is full of big scary weirdos.