In "The Apology Insufficiency", she did a background check on Howard for his security clearance. On her interview with Raj, he keeps talking about how he is in this country legally because he was paranoid of getting deported back to India. Then, Leonard hit on her, but soon discovered that she was already married. In the end, it was Sheldon drove the final wedge when he accidentally mentioned Howard crashing the Mars rover while trying to impress a girl; (Stephanie Barnett). After Howard failed to get his clearance which Sheldon did feel guilty about, he did let Howard sit in his spot for under two minutes, but failed in his attempts to retract his statement. The actress played the role straight against all the craziness of the gang.