Small Dog has gone up in the world and is now allowed in the sitting room with us and I have discovered that there is no need to be ladylike and leave the room, I can just blame it on the dog and DH is none the wiser!
And the best bit is because she's so cute he doesn't tell her off, so its a win win situation all round! 
Disclaimer: I would like to add that I don't fart very often but on the odd occasion that I need to I no longer have to leave the comfort of the sofa!