I am not a care taker sort as a general way of existing. I will help someone when they ask for it but I see it as their call to ask, not my call to inflict it on them. I see it as if a therapist says they are working on X day - then I take them at their word, trust them as adults to do what they choose to do, and go on with my life.
If I tell someone I am working and they ask if they will be bothering me - that is annoying to me - it is like an indirect way of them appearing to be nice but really wanting reassurance and so forth.