"I can't talk to a man who bears an undeserved animosity towards ferrets"

This quote by Graham Chapman recommends that he is unwilling to talk with someone who holds an unjustified grudge against ferrets. It implies that the speaker thinks that the displeasure is not based upon any genuine experience or knowledge of ferrets, however rather on a prejudice or predisposition. This might be interpreted as a criticism of those who judge others without taking the time to comprehend them. It could also be viewed as a call to be more open-minded and tolerant of those who are different from us. By refusing to speak with someone who holds an undeserved bitterness towards ferrets, the speaker is making a declaration about the importance of understanding and acceptance.