The annoyinghabit of housemates or partners hiding your stuff when tidying up.
You spend ages looking for your keys only to find that your housemate has unhelpfully "tidied" them up by putting them in a drawer - A useful question to ask before a lengthy search is "Have you been hidying up again?".
On a PS2 (the fat model) there is an empty slot in the back meant to put in a hard drive and network adapter, this empty spot can be accessed by taking off the network adapter or cover on the back. This is a great place to hide stuff like your weed, cigarettes/cigars, cans of snuff, small flasks, money and electronic devices etc. It's a great hiding spot because nobody will think to look for anything strange in there(just make sure to close up the back after) and no one will suspect a thing!
Person 1:"I need to hide this herb somewhere for a bit!"
Person 2:"Put it in my PS2"
Person 1:"How the fuck would i do that?"
Person 2: -opens the back- "See?'
Person 1:"ABSOLUTELY PERFECT!!!"
Person 2:"Yeah the good ol' PS2 expansion bay hiding spot trick!"