In message , Tim Watts
writes
N Ron Hubbard wrote:

Tony Bryer wrote:

On Sat, 12 Nov 2011 15:47:00 -0800 (PST) Weatherlawyer wrote :
Polyurethane foam?

That's the one.

Squirt some water into the exhaust then cut the top and bottom off a
tube of expanding foam adhesive and ram it in. You will need five
minutes or so for the effect to initiate. Half an hour would be best.
Repeat as necessary.

Those of us of a certain age will remember the Jennings book where a
potato rammed up the exhaust has the same effect.

Much cheaper than a tube of expanding foam,
and safer to use!

Boring... Pack his door locks with wet nitrogen tri-iodide.

Nice stuff, had a test tube with rather a lot in in a locker, opened the
door one day to find it had changed state and the inside of the locker
was an interesting yellowish brown colour. Glad I wasn't around when it
did it...............


--
Bill