My buddy called me at 6:00 am, to ask me to get on line and ask this question, he did his 4th shot of his cycle, put the needle in, AND the plunger would not go in, so he pulled it out and shot it in another area, he's freakin out because on the second shot he didnt clean the pin, he cleand the pin and ass on the first try but only his ass on the second shot, could the pin be infected from the first shot ????? THANKS...