Your minister is forced to retire because he's been convicted of committing rape 26 years ago. You're invited to the retirement party. Do you go? No, I don't think that I would.
You're a clerical worker. A new employee, a single mother, reads poorly and needs your help to do her job. Do you continue helping? It depends. I would help her during work if I had time. I would suggest she get tutoring after work. There are many avenues for someone who needs reading assistance.
You hit it off with someone in a dark lounge and make a date. Before leaving, s/he asks for help getting into a wheelchair. Do you pursue the relationship? Sure, why not? How does a wheelchair affect anything?