While stopping at a convenient store in Houston, Texas late at night. I was approached by a man whom was pushing a woman in a wheel chair. They asked for money. Just then, a derange man came out from a dumpster and punched me in the face and took off. I knew then I was being robbed by the three persons. I was confused from the punch in the face. The lady in the wheel chair apologized for wanting to rob me. I offered her to accompany home and live with me so she can have shelter and get her life together and detox from drugs. She refused to take me up on my offer. I reached into my wallet and gave her what cash I had in hand so she can make it one more day.