Well I do not blame you for your reaction, if you try to be socialble to your neighbours and they do not reciprocate what is left to do?
I trimmed my hedge and asked my neighbour if I could tidy up the hedge on his side, he said "whatever", which I took as an O.K,.. 2 hours of toiling in HIS filthy garden, cleaning up the trimmings ,removing various car parts and other rubbish,.. he eventually returns to the property with his family ,laden down with takeaway food from a well-known fast food chain.
I posture myself as if to say "look at how much nicer your garden now appears",.. he slams his car door ,marshalls his kids and partner into to house without even acknowledging my presence.
Filthy Scum , ignorant beyond redemption, waste of space ,taking up valuable ozone and resources that kinder people would appreciate,..time to start culling these parasites.