As one who used super glue by the pint in three grades I can say
that it cures based on moisture or difference in chemicals.

The thicker the solution is the slower it cures. The water type is
fast. Hit it with a mist or mist one part - glue on the other - and
mate them. Almost instant.

The skin has lots of moisture. Super glue was developed for field
surgery. Instant glue together a wound or seal a vein...

Martin had a former friend that was a large supplier of that glue.

On 7/4/2012 8:05 AM, Joseph Gwinn wrote:
In article , dpb wrote:

On 7/3/2012 1:53 PM, Gunner Asch wrote:
...

But it appears to be a very dirty trick that has managed to survive to
be occasionally played on the helpless.
...

I keep wondering about the "how?", though...generally a super glue
(2-methyl cyanoacrylate) has a setup time measured in a few seconds or a
minute or so on the outside. It seems fairly unlikely to me the time
between stall occupancies would be so short as to there to be a large
enough amount still active as to cause such wholesale adhesion and/or if
there were such a large amount in place it wouldn't have been noticed...

Crazy glue cures pretty fast on skin.

As for the glue on seat trick, it's pretty old, but real. I first heard
of it in the late 1960s when I was a summer hire at RCA, where we had
Eastman 910 (the original cyanoacrylate glue, still under patent and so
crazy expensive).

It was a big novelty then. I worked in the Plastics Lab, and people
would wander in and ask us to glue their fingers together, which we did
after explaining how to undo it without damage.

The nasty trick was to leave a small puddle on the chair of someone
disliked. Worked instantly. The remedy was acetone. Never heard of
this being done to a toilet seat, but the extension is obvious.

Joe Gwinn