In the Season 2 episode "The Carpet," Michael arrives at work to find a mysterious and offensive-smelling substance on the carpet in his office. After attempts to clean the substance fail, Michael has the entire carpet removed. He then spends the rest of the workday trying to determine which employee is responsible for the mess. As the hours pass, Michael mistakenly comes to view himself as the victim of a hate crime because, well, he hated the crime. Just as trust in his colleagues hits rock bottom, Packer calls to ask if Michael enjoyed the "package" Packer left him. Upon learning Packer was behind it, Michael laughs it off and even praises the man for his advanced sense of humor.
While the exact substance is never named, the audience is led to assume that Packer defecated on Michael's carpet. Yes, that's right: a middle-aged father snuck into his co-worker's office at night and pooped on the floor. Packer's crudeness and sexual braggadocio are barely tolerable, but his actions in "The Carpet" crossed several lines. Not only did his fecal humor interrupt an entire workday and require the expense of replacing the carpet, but the act was also disgusting, vile, and mean-spirited. For a character who manages to surprise with each new low he hits, defecating on his friend and co-worker's carpet went too far.