• "Very good! I am now in possession of the Aperture Science Handheld Portal Device."
• "With it, I can create my own portals."
• "These intra-dimensional gates have proven to be completely safe."
• "The Device, however, has not."
• "Do not touch the operational end of The Device."
• "Do not look directly at the operational end of The Device."
• "Do not submerge The Device in liquid, even partially."
• "Most importantly, under no circumstances should you (static, slows to a stop)"