During the 1980s the Swiss army fired off shells during an exercise and mistakenly burned a patch of forest inside Liechtenstein. The incident was said to have been resolved "over a case of white wine".
In March 2007, a 170-person Swiss infantry unit got lost during a training exercise and inadvertently crossed 1.5 km (0.9 miles) into Liechtenstein. The accidental invasion ended when the unit realized their mistake and turned back. The Swiss army later informed Liechtenstein of the incursion and offered official apologies, to which an internal ministry spokesperson responded, "No problem, these things happen."
CCC accidentally sell the Ricoh arena to London W**ps rugby team. They both apologise for the mix up when they realise it's actually a football stadium and not a rugby ground.
They both apologise to all CCFC fans with a free pie and a pint at the next home game and then scarper back off to the big smoke forthwith.