Ethically, that is admirable. These days we are far too disconnected from the meat we eat. Many people have forgotten where it comes from, and even fewer bother to ask its name.
The Major Cow (served at Milliway's) is very forthcoming in this regard:
The quadruped Dish of the Day is an Ameglian Major Cow, a species of dairy animal specifically bred to not only have the desire to be eaten, but to be capable of saying so quite clearly and distinctly. This quite vocal and emphatic desire to be consumed by Milliways' patrons greatly distresses Arthur Dent, and the Dish is nonplussed by a queasy Arthur's subsequent order of a green salad, since he knows "many vegetables that are very clear" on the point of not wanting to be eaten — which was part of the reason for the creation of the Ameglian Major Cow in the first place. After Zaphod orders four rare steaks, the Dish announces that he is nipping off to the kitchen to shoot himself, comforting Arthur only very slightly by stating that "I'll be very humane." (source)
PS: I think this thread is officially and seriously derailed -- if not deranged!
;-)