Definitely, and I actually use that a fair amount, and Hash::Util's functions were part of the inspiration for this. The advantage of this module is that it saves you two characters ;-) (they're a little slower to type on a German keyboard too...) One of the disadvantages is that method calls don't interpolate into strings.

(Hmmm, maybe I could to add a -lock option to additionally lock the hashref's keys, so the hash can be used safely in both ways... Update: Done!)