the other day when i was injecting my friend with 1.5cc of test enanthate after i pulled the needle out the juice started slowly coming out with little drops of blood in it also. so I took a paper towel and pressed down on it and messaged it for a while when i looked at the paper towelthere what a lottle bit of blood on it but a lot of the juice had came out. this has never happened before. I was shooting it in his butt. he didn't flex at any point and I went really slow when i injected it. what caused this to happen?