No mention of Forth?

Back in the early 80's Forth was the first language available on the original Macintosh. I loved Forth, but it completely ruins you for every other non-RPN language. I remember writing an ASCII terminal (dial-up modem) application in Forth to learn the language, and afterwards every other language that I was using at the time just looked... weird.

I had to perform a massive mental shift to get back into all of the other languages I was being paid to work with at the time, and it was so difficult (for me, anway) that I never went back to it.