Since I got ribbed a bit for my antique D&D lore in a previous comment, I have to defend myself from charges of extreme nerdlitude by distracting you all with a real nerdfest: a discussion of who would win in hand-to-hand combat between a first level magic-user and a housecat, complete with computer simulations.
The answer: under the modern rules, the cat usually wins. (When I played, if you said something like “I whack the cat with my staff”, there might be a quick check to see if the cat dodged, and otherwise, we’d just say, “OK, you killed the cat. Now what?” Dang rules lawyers and proliferating nit-pickery.)