Tommy, Ben, Lauren and Abby are neighborhood kids having a conversation about Christmas gifts.

Tommy: Hey guys, you know what I really want for Christmas?

Ben: Here we go again…

Tommy: A Light Amplification by Stimulated Emission of Radiation.

(everyone is silent)

Tommy: Come on, come on, I want to hear it!

Lauren: You mean a laser?

Tommy: No, I mean a Light Amplification by Stimulated Emission of Radiation.

Abby: Have you told your parents about this laser yet?

Tommy: I haven't told them about that, but I've told them about the Light Amplification by Stimulated Emission of Radiation.

Ben: Laser is a little-known acronym. Your parents probably don't have a clue what you're talking about.

Tommy: Of course they do. Light Amplification by Stimulated Emission of Radiation if perfectly self explanatory.

Ben: Anything else you want for Christmas?

Tommy: Yes. A Self Contained Underwater Breathing Apparatus.