don't look at me
1. An exclamation of innocence from a general accusation or implication of wrongdoing, with the emphasis placed on "me." Jane: "All right, which one of you kids broke the vase in the living room?" Tom: "Don't look at me! I've been playing outside all day!"
2. An interjectory response when one is unwilling, unable, or reluctant to perform some task, with the emphasis placed on "me." A: "Would anyone be able to check my computer for a virus?" B: "Don't look at me, I don't know the first thing about computers!" A: "We need someone to go through all the files on the server and delete everything from before the year 2000."B: "Well, don't look at me! I've got a project deadline looming, and I can't spare the time."