As a kid I would TRIP OUT while sitting in the backseat of the car while my parents drove on the highway... I would look at all the cars and think to myself "all of these people have their own lives and dramas and stories and feelings and memories"
There are many words that end with S that are singular. While this topic is debated both are technically correct. What you're quibbling about is the last word I used as an example, semantics.