Write My::DBD::Deep. Heck, claim to your manager that you wrote the thing! I don't think anyone's going to really hunt you down. The fact that it's a cut'n'paste of
DBM::Deep won't be apparent to a manager that refuses to have CPAN modules installed. Plus, whenever the author of
DBM::Deep comes out with a new release, you can claim to have an improvement that "you thought about in the shower over the weekend". This can only make you look good in the eyes of your manager.
Now, if you do this, I would strongly suggest assauging your guilt with a donation to the Perl Foundation of 10% of your raises and bonuses resulting from the usage of DBM::Deep. But, that would just be me. :-)
Being right, does not endow the right to be rude; politeness costs nothing.
Being unknowing, is not the same as being stupid.
Expressing a contrary opinion, whether to the individual or the group, is more often a sign of deeper thought than of cantankerous belligerence.
Do not mistake your goals as the only goals; your opinion as the only opinion; your confidence as correctness. Saying you know better is not the same as explaining you know better.