Levees and Dikes

Whenever I go out of town something happens in my house, or more accurately something happens with my sister and then something happens to my house. She reflexively rebels against some rule I have with specifically her in mind (like no eating in the living room) and I return from my business trip to a red stain on my rug. She insists it was a splatter instead of a spill (like I care about the mechanics when the result is a big red juice stain) but the physics I know can't explain a large stain like that forming from a mere splatter. Telling me it was a splatter does nothing to mitigate the BIG RED STAIN on my carpet. She also broke open my ice cream-I haven't even had any of it and she violated it with her greedy manic consumptive spoon. So yes, I'm annoyed. But I'm also a little pensive. When I'm here, I'm like a levee, holding her back. Enforcing the rules through presence. She has already spilled juice on this rug before which is why we made the rule. If I let it, this can bubble up into several days of not talking to her because she possibly ruined my rug, and if I don't count all the rent she doesn't pay, I'm still down several hundred dollars in destroyed property in just under 6 months. Don't get me started on the bathroom sink handle that fell off in my hand. I have to figure out how to repair it. 2 years of living here without catastrophic failures, 6 months of Ashley and air beds perforate, shoes I've had for years are reduced to husks, faucet handles fall off, new wool rug is stained. Clothes she's had for mere months are already sporting tears. I don't know if she is in a fight club or something but I do know I can't take another broken or stained thing.