(Absolutely non-serious note) You know, if someone wants to get to mental house before the appropriate time, then s/he should spend more time in debugger, especially checking events log :).
Usually, you will fight debugger quirks instead of fighting application problems.

>But what's getting me is that events are firing as I click from cell to cell, but my code is not executed. I can see in the debugger that the grid.mouse events fire, but my code is not executed.
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>> Control event overrides parent (grid) event. You can get Grid.event to be fired if you click on grid but outside the cell (on empty area, if you have it). If you want to fire grid event you may call it explicitly from control event:
>>**** Control.Click event
>>This.Parent.Parent.Click()
>>** other code