Dinsdale, Daniel Withrow, Zette, and Q.N. Jones have already said it pretty well for me, but I’ll add to the chorus.
I tend to fiddle with things when I get bored. I could easily see absent-mindedly braiding the fringes of a blanket, especially if I were a bit stressed or nervous because of something else going on in my life. It’s a way to burn off nervous energy, a sort of organized fidgeting, and I might not even be consciously aware that I’m doing it. If I did do something like that and it resulted in the consequences you described, “reading the riot act” and cancelling a trip, when I was a teenager, I also would have been afraid to admit I did it. I hate admitting this, but my father could be somewhat emotionally abusive at times, but still, is that an entirely unreasonable response? Right now, I’m afraid it’s not outside the realm of possibility that your kids think you value those blankets more than them. I remember being convinced as a teenager that my father would rather have a tidy room than a daughter, although again, from what I’ve seen, my situation was worse than your kids.
I’ve got a question for you and a suggestion. Did the kids know they weren’t supposed to braid the fringe? To be precise, did you tell them? It might not be obvious to them, especially if it was something one of them may have done absentmindedly.
Here’s the suggestion. If your youngest does tend to fidget, you might want to get her interested in knitting, crocheting, or some other needlework. As someone who still tends to fidget despite being in her late 30’s, it works for me. You might also want to look in to trichillotomania (sp?), the syndrome where people do tend to pull out their hair compulsively.
It sounds like I was a bit like your youngest in that I also had few or no friends in school, but got on well with adults. For a kid whose different in some way, adults are easier to deal with. Because you’re by definition not an adult, you don’t have to worry about conforming or operating at too high a level. I think basically you don’t have to worry about being judged negatively.
Keep us posted, and good luck,
CJ