Argh, damn you Mumsnet, for reminding me of the guilty pleasures of a BK Bacon Double Cheese...
I had a MCd's a few weeks ago (at Victoria Station, was desperate) for the first time in about two years and it actually gave me awful stomach cramps for the rest of the day.
The idea of them is quite tempting, the reality rarely lives up to it, though. I'm a good girl now, I am.