I did it before a while back. From what I remember I washed off the gloop immediately on the emulsion side, using cold water. I'd say all right leaving it to dry on the negative it'd be very difficult to clean it afterward.
One thing I noticed was that the negative seems quite overexposed or washed out, I subsequently tried shooting at 200 and 400, underexposing the print to try and get a nice dense negative. Mixed results :-D

Both of these are scanned...
This was shot at 100

This one at 400

I taped them to a plate, emulsion side down, after removing the gloop, and then used Milton Fluid to clear off the black backing.