Blue Cow (cartoon) which takes her to an appropriate destination where she will find out the answer to what she was wondering about. When she returns to her field at the end of the episode she tells the other cows in the field what she has done during the day. The other cows invariably do not believe her and say, "Everybody knows cows can't ..." followed by a description of precisely what Blue Cow has just done, with the narrator usually following up the remark with "But we know they can, don't we?" Blue Cow (cartoon) Blue Cow is a cartoon cow created
What Is and What Should Never Be (Supernatural) creepy look to it". He was pleased to see Smith and Palicki return, and found the character of Carmen to be "a nice addition to the family". Don Williams of BuddyTV agreed, and ranked the episode third in his list of the best episodes of the first three seasons. Deeming it the best standalone episode, he noted that it "can be embraced by anyone who enjoys clever writing, great acting, or a shirtless Jensen Ackles". General Specific Notes What Is and What Should Never Be (Supernatural) "What Is and What Should Never Be" is the twentieth episode of the paranormal