Comic Sans designer: "Comic Sans was not designed as a typeface"
connare.com
connare.com
I love the irony that Comic Sans was born because the designer was shocked at seeing another font used inappropriately.
That aside, it was an interesting story.
Having said that, regardless of the differences in execution, it wouldn't surprise me to learn that some Product Manager at Microsoft said "Make me something that looks like Helvetica", and the result was Arial.