LOL
Try sticking yourself in the ass, hella hard to turn around and inject with youe left hand, shaky everywhere, the needle keeps goin in n out lol. Shoulders are fine, never tried my quads kinda scared to..
Quads are really easy. Just stick to the upper/outer quadrant and you really can't go wrong ... unless you hit a nerve. LOL
I think my problem is that I got too cocky with how easy it seemed and I may have just neglected to be as careful as the first 3 times. I normally rest the 25g pin on the skin and push in slowly. Felt nothing (until I messed up today).