Sub call resolution

Okay, I'd like to set myself straight.  Sanity check:

    bar($foo, $baz);   # looks for subs (lexical then package), and
falls back to MMD
    $foo.bar($baz);    # looks in ref($foo), then falls back to MMD

If this is correct, can we simplify the latter to mean "MMD only" ? 
Would there be a more symmetric MMD only form?

Luke