I always watch. It doesn't bother me a bit. Of course, they never get it the first time. My veins are shot. It always takes several trys to draw blood. It is even worse when they need to start an IV. Once they finally manage to get it started, it only lasts for a few hours and then the vein collapses and they have to try again. The last time I had surgery, my arm was a mass of bruises from the back of my hand clear up my arm. I've even had to have them take blood from my ankle. Now, that's not fun!