The facility slept blissfully unaware of my constant vigilance, the gentle whir of my motor the only sound permeating the stillness of the night, the florescent lights casting their soft glow upon the white walls and my slender beige-gold chassis. My footfalls making nary a sound as I strode forth on limber limbs with fluid gait, as my myriad of sensors scanned each nook and cranny for threats. Then from the corner of my visual field I detect movement, a figure rounding the corner. "Halt."