for bonus lol's:
As you get out, hold the jar/jug submerged in the bath, so the gas stays trapped. Place something heavy on top to keep it in place. Drain all but 1cm of water from the bath then replace the plug.

Now the trap is set - Ask someone else to go in and check the bath has drained. They will go in and either:

1/ See the water, pull the plug; and as the water quickly drains away the beast within is released.
2/ See the jar/jug, lift it up out of curiosity; and they are hit with the full effect.
(The Incredible Sulk Finally remembered his password on, Wed 2 Jun 2010, 5:43, 1 reply, 15 years ago)

there's the added bonus
that bathtime farts seem to be more potent
( sandettie light vessel automatic New Twitter - @bollocksreally, Fri 4 Jun 2010, 19:00, Reply)

That's relativity for you.
Until they release 'Shitty Death' fragrance, radox will smell nicer than guff.
(AndyC4m Eject Eject [><], Thu 17 Jun 2010, 14:39, Reply)