My mum use to inject and my dad would sit across my legs when I wasn't being very receptive to the twice daily torture! I did my first injection on my own on my 6th birthday, 29 yrs later I remember it like it was yesterday it took me nearly two hrs!
wow I couldn't imagine having to do that to one of my kids at that age, or any age I guess. Lucky I was 12 I guess, but I still felt my parents were responsible for years (genetically that is, but no-one else before or since)