Throwing away opportunities

Recently I bought a new pair of glasses. I decided to try transition lenses, the kind that tint in the sunlight. So I went to the store and ordered them. I made sure to ask about the return policy because I have never had transition glasses before and I might not like them, 30 days money back. Great.

First pair: Did not transition. I took them back and they ordered the replacement.

Second pair: Did not fully transition back to clear. I took them back.

I returned them, no questions asked, no problem. I was not wearing glasses when I returned them.

A week later I received a phone call from the store asking how my glasses were working out. When I told her what happened, she said "Oh, OK. Thanks. Have a nice day."

I still have not bought glasses, I am wearing my spare pair. So this store, that cares enough to do a follow up call never once asked me what I was doing for new glasses. Did I buy them somewhere else? Do I still need to buy a pair? Nothing, not once.

What kind of sales opportunities are you or your employees throwing away?