Hello H.. I sense there is a lot more going on here besides the episodes of 'sneakiness' with a 10.5y/o diagnosed with ADHD, but I'll give this one a try and address the 'sneakiness' First, as a completely objective party here, I wish to offer the possibility that you need to step back a little, and b r e a t h e. I mean this seriously. You have obviously been interacting with your little girl on a level many of us parents do not. It is not an easy role for a parent with a child with ADHD. To me, the word 'impulsive' came to mind when I read your story...not so much 'sneakiness', although it does appear to be a component. My thought is your daughter may be 'sneaking' as a coping skill due to your reaction to her 'impulsivity' that occurs due to her ADHD. I know. Its a vicious circle, which is why I am suggesting you back away a bit and revisit her diagnosis with your pediatrician if possible. There are many experts out there in the field...many probably right here on Mamasourse. :) It is my wish you receive lots of new ideas for alternative programs for your child as well...there is much to be said for yoga for kids, Tai Chi, and herbal and homeopathic remedies for children diagnosed with ADHD.
Oh! And DIET DIET DIET!!!! No preservatives. NONE! No 'WHITE FOODS'...sugar, white flour, starchy potatoes...No chemicals, No SODA! No Food dyes! Diet is a 'given' when it comes to a child with this diagnosis...I don't think donuts is on the menu H., sorry. It really really is doable to change the way she eats...it can actually be fun to research how to eat healthy, and contrary to what folks believe it costs LESS to eat healthy. There are books out there for kids and adults with ADHD that have great recipes for sweets etc. Good luck with this H.....hang in there. Be Peace, N.