I remember being exposed to LISP in the late 80's after coming from Pascal and COBOL in my CS101 (C was a 200-level class.) It was such a complete mindf*ck. After learning procedural language patterns, switching to LISP uprooted everything, and in some cases the patterns were already burned in. In hindsight, I think it makes more sense to learn LISP first, and THEN procedural languages since the latter is a subset of LISP. When C++ appeared, my first thought was, "Hey, someone made C kinda act like LISP/CLOS."