Photoshop CC, 2014.2.2 2014.1204.r.310 on Mac, OS 10.10.1
When I click any tool in the tool bar the selection drop down menu always appears, even with a very fast, single, left click. It does not appear with keyboard shortcuts.
Annoys me because if I click the Fill Tool, for instance, and then quickly move the mouse cursor back towards the art board the menu pops open and I end up with the Gradient tool.