Two-phase fart attack, best employed when the victim has just stepped out of his/her office - but is hovering nearby. Phase I: Sneak into the victim's office/cubicle/personal workspace and crop dust. Quickly return to your desk. Phase II: Dial the victim's extension, luring them into the kill zone. Watch them choke. NOTE: Especially effective on days when the victim is expecting "very important" calls. This ensures the victim run to his/her office to answer the phone, before the wall of gas can escape.
Who the hell just took a shit in my office? It smells like a Camden Phonebooth in here!