Yes, I accept that but I just think that mistakes can still happen and to me there is an element of risk in injecting quick acting insulin immediately before driving with no carbs on board albeit to just correct a high. That is probably just me being overly cautious and is probably less risky than injecting and eating carbs before driving, although I very rarely do that either, but then I have the luxury of not needing to drive at set times like to go to work, so I can plan my driving for when bolus insulin is well spent and my levels are stable. I appreciate that others are not so fortunate.