succor for those in need

Today a 'homeless' fellow on the street barked at me for some help. I stopped and approached, and he held a small mickey of rum at me. I muttered at me that he needed help getting it open.

I could see that his hands were twisted by arthritis, and were certainly not going to do the job. So I opened the bottle for him and passed it back.

Surely an interesting ethical question lurks in there somewhere....