I haven’t aspirated in years and years. When you’ve had IV skills from a decade of healthcare, you see how damn hard it is to hit a vein on an arm with a level bevel.
It’s seriously a million to one you are ever going to end up perfectly in a vein in your glutes, 1-1.5 inch in there. It’s virtually impossible, and even if it were, it you feel when it’s in a vein, there’s a release of counterpressure, and blood straight makes a little mushroom cloud in the syringe, it wouldn’t exactly rush into the oil the way it would with something less thick, but it’ll flood in there a little and you’ll see it easy. If THAT happened, yes I would initiate the aspiration process to make sure it’s not in the vein entirely, but I would bet all my savings that just the act of trying to aspirate would pull it out of the miracle IV placement anyways.
It’s just not necessary at all, and even when you get “some” in a vein, you totally don’t die, it just sucks a little.