You should always asperate, but injecting in a vein won't kill you, you will just waste your juice. Don't let these guys scare you bro, stick that fucker in there!!
I knew some guy that got fucked up when hitting a vein in the glute......he turned flush white his lips turned purple like he was dead and he passed out. He was light headed and nauseas for 2 days after.
Who ever said dont aspirate when injecting into a glut is an idiot my best friend just recently had a little trip to the hospital because he injected 2cc of fina into a vein into his ass. he thought the same. that there was NO chance in hell he would hit a vain. hes alright now. but thats a lesson to every. even if 1 outa 1000 odds are ull hit a vein in my opinion spending 2seconds aspirating is a worth while precosion