I saw this thread yesterday from my mobile and wanted to branch off the OT rather than delete them as I felt this warranted debate. Got hold of my laptop and doing it now.
I see where Mpw is coming from and also, Keith & Hydrovac. They are looking at the same issue from two different angles and hence the conflict of opinions.
For Keith & Hydrovac, here's a story just for assumption just to change the perspective for you both:
This happens between you and your neighbour. You are, say a Doctor with a Clinic in the same complex and he a grocery shop. Naturally he's your family grocer. In society meetings, he scuttles your interests and repeatedly vetoes your intention to do some modifications to your flat to build a HT Room (adding our favourite masala for some emotional connect

). He actually promotes a new Doctor who has just moved in.
Now my question: Will it be business as usual with him or will you actually take your car out and go to the Departmental Store a kilometre away to fetch your groceries?