The Hungarian Me-210 had a Daschund in the nose that could run fore and aft when a change of CG was necessary. Only Black and Brown Daschunds could be used, however. It was an Austrian requirements forced on Messerschmitt, much as the pesky British ruined the otherwise flawless P-39, turning it into an urchin-snouted codpiece.
As a result, the production of Me-210s was held up while more Black and Brown Daschunds were bred and raised to be center-of-gravity dogs. Otherwise, we'd have lost the war.