DG, I've got to laugh. For the 2nd time I really got into my NTSU yesterday, I was looking for some high energy snuff. I didn't have that bad of a time with it or so I thought, but the ammonia literally 'burnt' my nose outside, can you imagine- it turned red where I missed and top of my lip and here I thought I had gotten it off.
I gave it another shot today, since it cleared up and I still haven't given up on it 'yet'...just letting it air out and next time I might try mixing it with something.8-o I do remember your experience with it - it's a strange one for sure.