As reported elsewhere, both David Miliband and Michael Gove were apparently threatened with legal action over their Council Tax bills. It's not just forgetfulness with Council Tax bills that's been occuring though.
Liam Fox, the Shadow Defence Secretary, was also threatened with legal action it seems over a £62.50 ground rent bill. He was sent a reminder in January this year, and then a legal threat in April having still not paid the bill.
Don't panic though, we paid the bill for him in the end.