This weekend a large piece of roofing felt came off the neighbours ancient wooden shed which is next to our garden and landed in our garden. Rather than ask for it back they have taken photos of it (whilst sitting on the shed). They may think we ripped it off when it was in fact the recent winds that did it.
Neighbours have form for not listening, antisocial behaviour and trying to escalate things so I am in a difficult situation. They can be quite rude, sweary and threatening as a first response to any communication at all.
I am quite worried where this seemingly small incident could lead if I even offer the felt back to them. I didn't sleep last night for worrying about it.
AIBU unreasonable to be worried this will end up legal? Any advice on how I should handle this to avoid escalation? What would you do?