OMG, just had a scary plugging experience. Not sure how I can offer harm reduction over it, but:
Just plugged some Morphine and I always leave the syringe in for 60 seconds just to make sure it doesn't suction any of the drug back out with it.
Anyway, maybe I just lubed it a little more than usual (or my butt was "hungry" lol) 'cause by booty sucked it in all the way! Had to literally go fishing around in there to find it. I did get it, fairly quickly, but had a sudden nightmare vision of having to go to the emergency room. I don't get embarassed, but I couldn't think of a way I could explain it being up there without them knowing what I was doing and adding some kinda drug abuser shit to my medical records.