I haven't had diabetes long but whenever people ask thats the first thing they say "Oh so that means you can't ever have chocolate?!"
I usually just laugh.. "No, it just means i can't ever have chocolate without stabbing myself with a needle is all.. "
In fact, two nights back i didn't really feel like making a dinner so i just ate half of a chocolate bar dipped in peanut butter lol I survived... sugars never got above 8mmol/l either.
Its tricky, because we want to convey that YES we can eat whatever we want, and still do anything we want to, but at the same time it is still a serious life long problem... So its hard to engage with people without coming off like its 'no big deal, and not bad at all' or 'its always a problem and lifes ruined'
My response is usually just to smile and change the topic..
EDIT - To avoid a double post, I watched that video (some of it anyway lol) Why do you need a can of coke!? I usually just carry some tootsie rolls in my pocket, and dextabs, and Airheads candy strips with my kit lol That totals like 100+g of carbs. I can fit everything i need with me for the entire day into a pencil case, that i just put in my bag or whatever I am usually always carrying anyway.
Sometimes i think people don't think through their choice of glucose, if you're out and get so low that you can't chew your glucose so you need to drink a coke (and can't make it to a shop to buy something), then you have some serious management issues and should re-think going out... Even, then there are more compact liquid glucose sources to pick.