Valid point

Me: You need to get your fanny in here right now and do the cleaning up I asked you to do.
Peanut: I don't even know what I'm supposed to clean up.
Me: All this food the dog got into.
Peanut: Um, it's kind of your fault this happened in the first place.
Me: I'm not the one who left my lunch on the table.
Peanut: Yeah, but the dog wouldn't have had a chance to make a mess if we wouldn't have left the house. So, that makes it your fault.
Me: It doesn't matter whose fault it is. It just matters that we get it cleaned up.
Peanut: Um, yeah. It kind of does. You know. So we know who to blame.