Wearing sneakers with a suit.
Eating liver.
Blowing your nose at the dinner table.
What do you consider taboo?
While the mind boggles with the many answers to this question, I will tend to go "light" and say . . It is taboo to NOT take your turn at a STOP sign. Drives me nuts when I see someone roll through the STOP sign right on my tail after I have waited the allotted 3 seconds with no traffic.
What i consider taboo u and others may not. So its in one persons opinion. U see all these nose rings facial piercings look like crap to me.
Flossing your teeth at the table.
Discussing your personal matters with the world. I wish more people felt that way.