Pew pew pew!

Caleb: I want one of those red dot sights on my gun...when I get a gun, that is.
Me: red dot...that's a laser sight.
Caleb: it's a laser?? Cool! Pew! Pew! Pew!
Me: no, not that kind....of laser. You know what, nevermind. Pew! Pew! Pew!