leave me "alone"

Jon (not minnesota Jon, somebody else) writes: This note appears every day on an office door on the floor I work on. I have never seen this woman do any bit of work; instead, she's always
seen power-walking around the office or outside in workout clothes. I've come to believe that either: 1 - she does no work at all, and "at lunch" is code for "bs-ing my job real quick" or 2 - she does no work at all, and "at lunch" is code for "applying for other jobs/blogging/ebaying/etc".