Take an empty jam jar into the bath with you
That way if you submerge it full of water you can trap and preserve a fart to release at a time of your choosing
(SpunkyMcSpunkbubble Diddled your nubbin on, Sun 30 May 2010, 21:37, 7 replies, latest was 15 years ago)

any tips on getting the jar
Out of my ass?
(CactusZack Shaved his coin purse on, Mon 31 May 2010, 3:28, Reply)

I had a friend
who said he farted into a tupperware box, put it in the fridge, and in the morning there was a cabbage in it.
(Smale is stuffed, Mon 31 May 2010, 8:27, Reply)

Hahaha!

( Noeli overtheshoulderboulderholderthingstraplatchboobs, Thu 3 Jun 2010, 7:57, Reply)

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, Reply)

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)

One of my friends
used to keep a pint glass next to the bath for exactly this purpose.

He used to take a bath every morning. On occasions he would fill the glass with a fart, carefully carry it into the bedroom and stick it under his girlfriends nose to wake her up.

I never quite got to the bottom of why he would want to do this, and his girlfriend was the sweetest of people . . . but it was kinda funny when he was telling us, especially as said girlfriend was there at the time and just rolled her eyes as if this was perfectly normal, if just a bit boyish behaviour.
( Not Pineapple anymore, Fri 18 Jun 2010, 12:19, Reply)