Events under MovieClips

Problem is:

I have floor movieclip to which I added eventListener. If user clicks on floor, then unit moves there. Problem is that unit is also movieclip and if i want to click on floor behind the unit, then it means clicking on the unit, but then no event happens as i dont click on floor mc but instead on unit.

Is there a way i can tell Flash not to take some movieclip into consideration if it is listening events.

One solution is to create transparent mc on the unit but then i cant click on unit for awaking events.