Random destroy question

Eagleone

I have 10 actors set up on the screen, these actors fall from top of the screen towards the bottom of the screen (all at random times and speeds).

I also have another actor on the screen which is supposed to act as a button (this actor is always in the same position and once pressed it's supposed to trigger an action). The action I would like this actor to trigger is to make "any 3 of the 10 falling actors disappear". Is this possible?

Have been playing around with this for a while but can't get around it as yet.

Any input is appreciated.

Thanks!