Hi Giles, good to see your post today!
Just one thing I noticed that concerns me - you gave insulin to Giles after your meter read 'fail'. That is not advisable. I would never, ever give insulin without getting a reading. Some of the others may want to weigh in - but it's extremely dangerous to administer insulin without knowing what the BG reading is.
Perhaps you would want to consider getting another meter - to keep as a back up for when the first meter fails to get a reading. You really need to have some idea of what number you're shooting. There are times when Giles' blood glucose may be too low to shoot...and could set you up for a hypo situation.
Please, please, please...do not give insulin without getting a pre-shot test.