I saw a black cat with a blue collar yesterday. I paused, hesitated, and wonder if I should take it home, but DH is allergic to cats. When I was leaving work yesterday, I looked for that cat, thinking if I should take it home, but I didn''t see her. Then I see her again today. The collar is broken. I tried to approach her, she paused and alerted. I don''t know if I should take it home. How do I approach a cat? I am such a bad person to ask this. Do cats have diseases? How easily do they have rabies? I am torn... What should I do?