Chain reaction

 

For some reason teepublic.com flagged this design for review. I can only surmise that it triggered some algorithm for a movie or program called Chain reaction.  

It wasn't the reaction I was expecting.

This one got no reaction. Nor did this one:

I'm thinking it will take a bit of thinking to get the pun. 

If anything was going to be flagged, I thought it would be this one. Though I kind of like the image of the Pillsbury Doughboys in trenches. 

We'll see. I didn't set out to start a war.