"yum yum yellow" brings back memories. when I was purchasing my first wet suit, I asked my instructor if color made any difference. He said "not in the slightest." Being essentially flamboyant, and not wanting a drab suit, I ordered a bright yellow suit, with blaze orange butt and knee patches.

Some months later, while diving near San Francisco, I first heard the phrase "yum yum yellow." New information on sharks reaction to color. I was a very alert diver for the rest of the project. And I learned to cherish a dark blue wet suit...