[redwitch]

I doubt the owners saw their weeding as being any sort of an issue — whether there was a gate or not, yard maintenance is obviously their responsibility (and there were enough weeds in your backyard for them to have to be there a bit). Would you have been as upset had it been someone they hired just to do weeding? A person paid to pull weeds or trim frequently does not have a schedule when a job will be done — too many other factors involved such as weather, what else had to be done in a given week or day, etc. Be grateful they care enough to maintain the outside for you and let it go. If you don’t want them going behind your gate, do more than just pull a weed when you walk by — weed the courtyard and do whatever other outside maintenance is required yourself.