As a person who is what is euphemistically called a "senior citizen" I occasionally receive offers of "help" that I do not need and do not want. Maybe in 10 years I will, but not now.
I cannot figure out what prompts this "helpfulness" -- certainly nothing in my gait. I could run most of them ragged on the tennis court.
I generally respond by saying "Thanks, but I am fine". Usually people smile and go on their business. But sometimes, the person is determined to help, and determined that I will accept her help. (It is always a woman.) I see this as aggression.
I have never got to the point where I have told the person to "f off", but I have said "Please, just go away." Once I received a lecture on how the person was bringing up her sons. To that one, I replied "You are teaching them to impose their will on women who are minding their own business? That sounds a lot like rape."
That was very satisfying, but what I am looking for is a way to get rid of them before I slander them. What should I say after two "No thanks, I'm fine." Mild rudeness is OK.
(culture: Northern VA, typical middle-class suburban mixture; highly educated)