As some old quotes go, ‘Never talk about politics, religion or sex in polite company’ and/or ‘there are three things you never talk about in polite company: money, politics, and religion’. So I guess that is 4 items total.
Any one of these subjects, people can get emotional about, and ultimately peoples feelings can get hurt, and relationships can be damaged.
We DO NOT want to start a Flame War! Please be Responsible citizens.