Re: define-key acting strange..

[Richard Stallman]

     (define-key [t] <foo>).. and that <foo> could be anything ..

    Emacs is not frozen.. 'tis just that this line has the effect of
    adding a (t . <foo>) to your keymap <-- Whether this result is a bug
    or not, i am not sure..

Yes, indeed, that default definition could cause such problems.
Mystery solved, I think.  Thanks.