My lone act of civil disobedience as a teenager in the 1970s (there were other instances of just plain disobedience) was to walk in a pack of hundreds of other jean-jacketed and bell-bottomed youths from our high school to the local courthouse to express our displeasure at the impending nuclear test at Amchitka Island.
This is a companion discussion topic for the original entry at https://www.avweb.com/insider/public-ads-b-tracking-should-be-optional