Skids touching/using your stuff
Ugh, I hate it when SS11 is here and touches or uses things that specifically belong to me. I got a mini-trampoline not too long before his spring break visit and one of the first things he does is start jumping on it. I have an old piano in storage that my mother had given me that I'll be bringing into the family room next year because my 3.5yr old will be taking lessons then. DH just told me today that BM just had SS start piano lessons. Last thing I need is for him to be using my mother's old piano while he's here. Or like he'll use some vintage whiskey glasses for water instead of a "normal" cup. Anyway, this is more of a vent, but also, do I need to let him use my stuff, even if I'm planning on letting my own kids use these particular items at some point (not including the glasses)? Things that are my own items? I don't think I do, but is it my job to be the bad guy and tell him no or should DH be proactive and say things like "The mini-trampoline is Shell's, so don't use it."
Those of you who have both bios and skids, is there a difference in how you feel about your bios using something of yours vs skids? Whereas you don't mind if your bio uses something, but you do if skid does?