Crocks in the evaluator

[Robert W. Kerns <RWK at MIT-MC>]

I was just scrod by this a few minutes ago, myself.
In my case, I was funcalling something that was supposed to
be a symbol, but due to a typo was actually NCONS of that
symbol.  I would much rather have been told that FUNCALL
got a random LIST than that somebody called the function
with the wrong number of arguments!