Shake Shack Inc's <SHAK.N> shares fell as much as 11 percent in early trading on Tuesday, a day after the hamburger chain reported the slowest sales growth at established restaurants in a year.

Shake Shack Inc's &lt;SHAK.N&gt; shares fell as much as 11 percent in early trading on Tuesday, a day after the hamburger chain reported the slowest sales growth at established restaurants in a year.

Steak n Shake's overall revenue in the first quarter also fell, 2 percent, to $192.7 million, while profit dropped 57.5 percent, to $3.4 million. In addition, the number of customers visiting ...

Corporate executives often shake hands in different ways. And while most of us are aware of the famous 'wet fish' greeting, there's a range of awkward handshakes to prepare for.