Ask about her lights.

As He stands in her apartment, he can see the lighting changing in the dining room. Doug walks over and checks the switch first, looks secure. Then checks the light bulbs, where he finds 3 of the 6 bulbs in the hanging lighting loose. Tightening them up, the flickering goes right away.

"Oh thank you so much, I feel like such a fool having you come up here for simple loose bulbs. How can I thank you?"

"Don't worry about it Mrs Coltrain. I'm sure it is just one of those things your husband would have taken care of when he got home. Not a big deal. Is there anythign else wile I'm here?"