I agree that harsh chemicals around your device is a bad idea. No matter how safe you think you're being a single drop can ruin your day in all kinds of ways. Meanwhile the good and bad thing about super glue is it dries hard like plastic... This polymer is great for holding things together but has a weakness which is that it is not flexible. If you can see the drop that is holding you up you almost surely can remove it. A wooden skewer or chop stick would be my weapon of choice. If it doesn't have a flat end, like a squared off end, not a pointy one because you are not going to be able to angle the tip in there to hit the protrusion, so you'll want an end that is flat or you'll have to make one, by cutting the tip off. You'll want to do this at a fat or meaty part of the skewer or chop stick to give it the most strength. Then slide in until you make contact with the blob and holding it against the wall that the blob sits on push firmly, both towards the wall and down onto the blob, perhaps rocking side to side or up and down to get it to shear off at the facet point, which will be where it contacts the wall. If it's not too deep in the hole, you wouldn't want to drive the wood into the bottom of the hole and possibly into the phone, and you trust your judgement you could also try to strike it sharply, being careful not to drive it into the phone. Honestly at this point you're looking at replacing parts or not having the pen so really attempting this your self isn't all that far out of the question. If it works, and I strongly believe that it will, you get off just feeling silly. If it doesn't then you're looking at a repair and still feeling silly but having to face someone and explaining what happened...
You could put a drop of super glue on some sacrificial piece of plastic and attempt to remove it in the manor I described and that way you can see what force is needed and in which direction and how it will work before attacking your phone.
) tried to remove the S Pen. Uh oh. It wasn't there. I was lying on my bed so I started feeling for it, trying not to move my trunk. ("You're looking at a possible 25K Naira [$70] bill" flashed through my mind. I couldn't find it. My left hip moved slightly and I heard THE CRACK. Yep. I'd found my missing S Pen- by breaking it. I thought about using super glue since the 2 fragments apposed well. (No S Pen warranty in Nigeria; anyway it was my fault). What if the glued junction later weakened? I could possibly be left with a portion of the S Pen in its holster and no way to remove it by myself. I decided the risk wasn't worth taking. Ordered an original replacement S Pen. Was irritable for the rest of the day. Got it 24 hours later for 27K Naira ($73). I'd lost the spring in the broken S Pen but still super glued the portions. Reset the phone to multiple S Pen mode. Only functionality lacking now with the original S Pen is remote control. 
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