Hittest and gotoAndPlay() issue

I have two movieclips and the problem comes when i want to use hittest().

The two movies both have frame called “explode” in them that is about 4 or 5 frames long.

So when the two movie clips collide i have


mc1.gotoAndPlay("explode");
mc2.gotoAndPlay("explode");

The collision happens and the “explode” frame starts playing but the pproblem is that it playes over and over as long as the objects touch.

the last frame of the “explode” frames has the stop(); in it but it still playes it over and over.

I was just wondering if there is a way to play “explode” just once instead the whole time objects are touching…

ty for any input