She's a menace! I suspect mental decline is behind it sadly. I've talked to her daughter and she says it's a pain getting professionals to look into it further because she seems so competent and alert at her appointments and then it all falls to pot at home.
Last Easter I ordered 3 of these half egg filled things, kinder bueno flavoured.
When the postie arrived our dog was out front so instead of trying to redeliver or arrange collection he left it next door. I'd just seen him walk down the drive and get in his van to drive off from outside the neighbours and at the same time got a "Your parcel was delivered" text.
So I immediately went next door, knocked, and heard fast little footsteps away from the door. I waited a minute, knocked again, and no answer, so decided to come back home. As I walked past her living room window back to ours I saw her literally DUCK behind the couch.
A few days later she came round with the parcel, opened, and said "Sorry I didn't realise it delivered to the wrong address". One of the eggs were missing and another had been de-robed of its packaging.
I wish this was the first and last incident like this.
She also once said "I took a parcel in for you", when the Ring camera shows it being put in our blue bin. When she gave me it she'd given me the product, not the product in it's box. What the ring camera didn't pick up was her coming down the path, and it's never missed anyone coming down the path, so I reckon she's gone round the side of the house and ninja-rolled over the wall and done the same to get back.
When she's caught us in the garden she's pointed to the wisteria and said things like blimey that's getting big isn't it, and I've thought nothing of it, because why would any person with sane neighbours need to think anything of it? Alas, it's untimely pruning times up perfectly with her "rescuing" an exciting package of 3 nit combs.
She does sometimes leave me little presents too though. She leaves me seeds and seedling trays, and less wanted strange oddities from charity shops that usually find their way back there.