You’re drinking a can of Guinness. As you near the bottom, something rattles around inside the can. You look inside and see, to your surprise, what looks like a ping pong ball. Was it a factory error?

Any Guinness fans in the house? Personally, I'll down a can of dark Guinness any day, and though I can confirm that it does indeed taste better in Ireland, I'll never fault the brand for that.

Add Yahoo as a preferred source to see more of our stories on Google. Guinness, like other Irish stouts, enjoys a seasonal popularity every St. Patrick’s Day. It has also been touted as being “good ...

As sales of booze-free drinks surge, we blind tested Guinness and Guinness 0 to see if our tasters could tell them apart ...

Guinness, like other Irish stouts, enjoys a seasonal popularity every St. Patrick’s Day. It has also been touted as being “good for you,” at least by its own advertising posters decades ago.But can ...

Guinness, like other Irish stouts, enjoys a seasonal popularity every St. Patrick’s Day. It has also been touted as being “good for you,” at least by its own advertising posters decades ago.But can ...