Musk's social media antics were part of an April Fool's prank, but investors weren't laughing. Tesla shares dropped another 5 percent, according to The Washington Post, with business experts openly questioning Musk's ability to lead the multi-billion dollar company.

However, investors weren't amused by Musk's prank on April Fool's Day. According to The Washington Post, Tesla shares faced additional 5% drop and business analysts even questioned Musk's capacity to steer the multibillion-dollar corporation.

For every well-executed corporate hoax, there's an overeager company whose ill-conceived pranks have blown up in their faces, sometimes badly.