These last couple of weeks I've had more time at home and I decided to paint our back garden fence / the shed / the kids play house. I texted neighbour A to see if I was ok to paint the side of the fence I think we actually own it but I'm not 100% it was there before we moved in. Neighbours B are probably in their 70s and I do not see them often. I eventually saw the man and when I asked if he would mind me painting his fence on my side he said "righty oh" that was it no more conversation. So I chose a nice colour I wanted. I didn't want the usual green or brown and I chose a colour i loved £30 per 5 litres. It's probably excessive but I though it's my money I work hard. I did have to go back for more than I originally thought and in the end the paint cost £180. It's taken me nearly 3 weeks what with the weather / work / kids.
So today I was on the phone to my daughter and heard banging and men chatting. She said 2 men are taking down neighbour Bs fence. I didn't think much of it. She then text me to say neighbour B has said "tell your mum I will be popping round to paint the bit of my fence that's on your garden". It's his fence he's paid for it but now I think I've just got it looking really nice and he won't be using the same paint as me. Plus the old fence I had painted probably needed 1 1/2 tins that's £50 wasted. What shall I say? I do not see these neighbours often so can't just casually bring it up in a conversation. I do not have their numbers. I'm not sure if they have mobiles. What if he does it before I'm home or tomorrow while I'm out? Should I put a note through the door explaining that I've spent lots of time and money on my garden and would rather him not paint it with the colour he will use?