I prewarned. DS was cool with it, he doesn't care much about needles though. He shocked the ladies doing it they told me to half lay on him and hold his arms, I told them it wasn't necessary but they insisted. When they stuck the needle in he watched and chatted to them asking what they were doing. When he saw the vial of blood he demanded they give it back cause he needs it Afterwards he got a lollipop and he was happy as Larry. DS2 had his after and DS1 got distressed then because his baby was crying, so cute
Good luck! Xxxx