The Trio accidentally turn Buffy invisible. She takes advantage to escape from the problems in her life. * Accidental Pervert: Xander cops a feel of Buffy's invisible breasts. * Applied Phlebotinum: The diamond stolen by the Trio in "Smashed" is used for their Invisibility Ray. According to Willow it has "quasi-mystical quantum properties". * Badass Adorable / Running Gag: The female Scoobies all love Buffy's new haircut. Whether or not they can see it. * Blatant Lies: Spike turns up at Buffy's house because he's "taking a stroll" -- in daylight. Buffy says she doesn't know where Spike's lighter is -- it's actually in the pocket of her jeans. Xander catches Spike doing 'naked push-ups' in bed. There's also a Brick Joke from S5 when Spike tried to hide his Stalker with a Crush