Some consumers argued that that the sweater made light of mental illness. Over 2 million adults in the U.S. suffer from obsessive compulsive disorder. For more on OCD and other mental health issues, head over to NIMH.
While Target may not have intended to offend anyone, there is real harm in using terms for mental illness metaphorically. As mental health advocate Rebecca Fuoco said, "Making these flippant references (1) trivializes how devastating the illnesses can be and (2) perpetuates myths and misunderstandings."