Yeah, the second row headrests do not have multiple lock points. They only lock in the fully inserted position. As a (very part time) Auxiliary Police Officer of over 13 years I have been on more accident scenes than I would like to remember where unsecured objects became harmful projectiles. I have been storing my removed second row headrests in the Stow and Go bins. The forces involved with a collision are staggering.Just make sure they're secured well enough that they won't go flying if there's a collision.