This always puzzled me... a couple of years ago i was super sick and needed to take injection for quite the long time daily... so i checked lots of different people to give me the injection and some of them were hurting me soooo bad (the injection was very strong itself) while there was 1 old woman who was working in a hospital that was kinda far from my house if i went there by foot... but the way she gave it to me was the best... i didn't feel it as the others @_@ so i would always take my papa and go there... i didn't take the bus because it was painful and i couldn't set... so we would just walk together back home by foot... it was annoying ,_,