Hey was just pulling from the vial when I noticed a bit of oil leak out around the needle on the stopper. It stopped as soon as I pulled the needle out but still worries me a bit. Seems like it's be fine, seeing as I'm injecting air in there in the first place and it's not like air is getting in while I pull but thought I'd see others opinions. Gotta couple mls left in there but no problem to toss if compromised. Btw, I draw with 20 gauge.