As bit of background, we're in a semi detached cottage in a small village. There is an old right of access by foot across the back of the semi for us/next door, and therefore a gate into our garden, between our gardens and one out of theirs.
The gate between the gardens has a lock, we don't have a key but they do. No issue there as we don't have any need to use it and if we did we would ask and arrange a conveneint time. Our neighbours are retirement age and we get on well with them.
Our neighbour likes to bring his lawnmower through as he apparently struggles to get it through the front access to their property. No issue with that. We have recently replaced the fencing on our side and therefore our gate, and it can now only be unlocked from the inside.
AIBU to think it would be courteous to at least knock and ask if he can come through before just walking into our garden, down the side of our house (which he has no right of access over) and unlocking the gate? This has happened loads recently, I'm now on maternity leave and have on a number of occasions recently been startled when he's just appeared (my car is on the drive, there is no reason to think I'm not in) outside our French doors which I have open. The other week I walked out of the downstairs bathroom and he was right outside the bloody window. I basically feel like i have no privacy in my own home or garden. Today I'm really riled as DD is poorly and not at childminder, and again he's come through and left all 3 gates open... I only stuck my head out as I heard a noise and saw the gates open (they have been wide open now for 45 minutes and I'm about to go and close them all as pissed off now). Our DD could (although I admittedly try and keep an eye on her as much as possible but she's allowed in our garden as we always ensure the gates are bolted!!!) have gone out of the gate and made her way down to the road, or even into their garden where they have a huge pond. So AIBU to ask that he perhaps just knocks first to ask/let me know!?