My friend I wrote about below left a message on my machine and needs me to run an errand for her (get medicine). I am avoiding her calls because I want to limit our contact. I work at home and she has never respected that, meaning most would not just expect someone to leave work to run an errand for them. Obviously my work is flexible. If I call her back and get her medicine, then she will have one other reason to be thankful and want to reciprocate somehow. I feel somewhat bad because she is unable to drive herself, and with small kids at home. But I know if I return her call today it will bring on more contact. What should I do. I haven't returned her calls for a week.