I fell out with my upstairs neighbour the first time she flooded me. It was the middle of the night and there was water pouring through my kitchen and bathroom ceilings, she said she couldn't turn the water off cos she couldn't get in to the stopcock and she wasn't phoning the plumber (her brother-in-law) in the middle of the night. It was after 11am the next day before he came - he'd been on the golf course and the water ran all that time. I was knocking holes in the ceiling to try and drain it cos I thought it would collapse. Then she lied through her flippin teeth about how the leak occured so that I couldn't claim off her house insurance (backed up, of course, by her brother in law plumber). Didn't speak to her for months after that.
I didn't fall out with her the last time she flooded me - last year - even though she lied again about how it happened (same bloody place I might add - kitchen and bathroom) - apparently her sink blocked when she was draining the fat from her mince (what the hell kind of mince does she use) - how this could have flooded two rooms in my house I'll never know. And again, it was over 12 hours before she got her BIL out. And again, I had to do the repairs myself - it's impossible to claim from her when she has a plumber that will concoct a story to make it impossible to claim from her.
Don't get me started on her spilling 5 litres of brick red masonery paint on my path, or her son "pruning" my apple tree or the fact that she kept blocking the drains with baby wet ones and that she refused to pay her share of having the guttering repaired when it was leaking.
Neighbours are a pain in the backside sometimes.
My neighbour on the other side is lovely, but her grandson seems to think I'm the HSS Hire Shop. Every time he sees me, he wants to borrow a spade/hammer/spanner/saw/plane or some other tool. I've suddenly lent every tool I possess out to people and haven't had them returned yet!!!!
With regard to your landing strip - next time you're cutting the grass and you see him, shout over "are we taking turn about of cutting this bit?"