We were having a problem with the computer. Despite A's suggestions, I tried my own idea which, unfortunately, didn't work.
A: Well, I am the computer wiz! W-I-Z-Z-Z-Z-Z!
Me (trying to teasingly show that I'm good at some things): Oh yeah? Well, "wiz" only has ONE Z in it!
B (defending his brother): Mommy, he never said he was a SPELLING wiz!!