Sort of related to this. A couple times when shooting with a 23g 1" pin I have gone all the way in, injected slowly and kept the needle still. Yet when I pull out oil starts oozing out of the hole, no blood, just oil. It has happened in quad, delt and glute, one or two times in each. Was around 14% bf but I was in the muscle for sure. Any ideas why this would happen?