 In another chamber, GLaDOS notes the importance of the Weighted Companion Cube, a waist-high crate with a single large pink heart on each face, for helping Chell to complete the test.However, GLaDOS declares it must be euthanized in an "emergency intelligence incinerator" before Chell can continue.Some later chambers include automated turrets with childlike voices (also voiced by McLain) that fire at Chell, only to sympathize with her after being destroyed or disabled.