sometimes it it possible to just get a bad tea?
or is like with computers, mostly user error?
Oh yeah, definitely possible to get a bad tea. User error can also be a factor (brewed my tea too hot first infusion, too long second infusion. Third was juuuuuussst right. signed- baby bear. Heh.)
Also, since tea tastes are subjective, you could get a superior tea, brew it perfectly, then in the end still want to wash it down with anything you can get your hands on to kill the taste.