Ciaran Crean was reading an article last July about the corporate financier Conor Sheahan. It was four months into Covid-19 and, MicksGarage.com, the e-commerce business he co-founded with his twin brother Mick, was facing a challenge. It was doing well selling its original product lines – car parts and accessories – and tapping into a new business providing anything that goes in a garage such as BBQs, camping equipment and paddleboards. But now one of its earliest investors, Investec Ventures, had indicated it wanted to sell-out. It was not unhappy with the company, but after eight years as a shareholder,…