The weather may have turned arctic, but frostbitten fingers won’t get you out of doing your tax return. HM Revenue & Customs has issued a list of the most bizarre (and unsuccessful) excuses it received from customers who missed last year’s self-assessment deadline. They included “My boiler had broken and my fingers were too cold to type”. If you have been putting off the day when you have to gather up all your bits of paper and sit down and…