I inject through my clothes all the time, get my belly out etc. Perhaps i should care more but i don't! I manage my condition not the other way round if the world cannot handle little old me doing an injection once in a while then tough! I haven't had much grief when injecting in public although...
I inject in public all the time, never had any qualms about it. Only takes a few seconds and sure sometimes people look but its just curiosity and i'll always be happy to explain what it is i'm doing......I would never, never ever inject in a public toilet if people don't like it they can look...