"I determined that it was in my company's best interest to terminate this transaction prior to his returning to my store to complete the Federal Form 4473 and NICS (National Instant Criminal Background Check System) required of Mr. Kelly before he could take possession of this firearm, " MacKinlay posted on the Tuscon store's Facebook page Monday.

CNN: Gun store nixes Mark Kelly's AR-15 purchase

It also often proves sensible to apply for a card with no Foreign Transaction Fees prior to departing.

FORBES: Avoiding Credit Card Ripoffs While Abroad

There is already no shortage of finger-pointing going on between HP, Autonomy and the accounting firms which were involved in the due diligence prior to the close of the transaction.

FORBES: HP: Time For Meg To Go

The average value of a retail transaction was actually lower last year than the prior year, but TJX managed to bring lots more customers through the doors.

FORBES: TJX: Dreary Stores, Undervalued Stock