Wishlist: 'quietly' argument for .onAttach() / .First.lib()

Hi R-devels,

in "Writing R extensions" as well as in the help
to .onAttach(), you mention that one could
use this function to issue a start-up message/banner
for the package.

My little wish for Easter:

a 'quietly'-type argument for .onAttach() / .First.lib()
which is passed through by functions
require() and library() respectively,
and by means of which one could optionally
suppress this start-up message/banner .

Is this hard to do?

Thank you already
Peter