Housesitting for a friend for a few days and they said sometimes the kids next door will hang around the a/c unit by the side yard and to just tell them to move over to their own side yard (a few feet away). Asked them politely to do that today (don't need to give my friend a legal headache if they get hurt from climbing the tree they have) but I just felt (and still feel) weird about it. They looked upset and I wasn't going to call the cops or anything, if they came back I'd just go to the neighbor to tell them, "My friend's not cool with XYZ regarding the kids." But I hate feeling like I was a jerk (even though a part of me knows it's really not a big deal)