There are two certain ways to lose a friend: one, have an affair with his wife; two, start a discussion on politics. The first can occasionally be a tempting prospect for, as a wise guy...
source https://timesofindia.indiatimes.com/blogs/voices/the-fine-art-of-losing-friends-by-talking-politics/
source https://timesofindia.indiatimes.com/blogs/voices/the-fine-art-of-losing-friends-by-talking-politics/