It will likely be very dose-dependent, and how concentrated the cannabudder was in the cookies. Edibles are a lot stronger than smoking for sure if you don't have a well-built tolerance. Personally, I had an edible yesterday that had 1g of bubble hash in it. I was able to go to the store later and get everything I needed for re-doing some flowerbeds for the Spring coming upand some wod sealent for another project, before promptly returning home and having a nice stoney nap.
To give you a reference of my tolerance, I smoke anywhere from .4-.6 in one given sesh, and I was not overwhelmed by it. In fact, it it some of the best meds I have had, completely relaxing and the description I would give it is being very "chill".
A K.O. for a dog, albeit a retriever, still requires less than an adult I would think. If you can, try about 1g of
flowers worth in a cookie if your son can help you pinpoint that amount. Otherwise, Half of what the dog had and in 2 hours see where you are at. You'll likely have to find your edible tolerance yourself (but I don't think that is a bad thing :thumbs
Oh yeah, and expect the body stone it is really light, lovely, and unique at the right dosage.