Best result I ever got from a college class. Too Statistics and we spent a whole section on "How to lie with statistics". Many of the examples were USA today front page graphs they place there every day. Scale is the biggest manipulator. Make the y axis small enough and a minuscule change can look like the world is ending, or the opposite way that glory days are here never to leave again. Start a graph from 0 and suddenly the perspective is very different.
ETA: I'd also encourage people to learn to analyze the data they are seeing.
The biggest drop and the 8th biggest were in 1987 BUT, take a close look. One was on 10/19 the other was a week later on 10/26. Notice the closing value of 10/26. Less than one week later, on 10/25 the market had closed at 1950.76, which would have been 212 point up from the close on 10/19, or nearly gaining back 42% from the worst drop ever just 6 days earlier. And yes them it fell again, but was still up 3% in total from that earlier time.
This is the example time and again that people who do not understand why you need to be in, and stay in, the market miss things. In many cases right after a huge drop, you get a modest or big recovery and if you panic and sell you miss the ride up after locking in your losses and then getting in when the market already gained 3% or more. How many of us would complain about a 3%+ gain in one day?