Ah, you all were so good in 2008!
It was before I found this site or learned anything about investing, so I'll admit that I heard about things crashing, panicked a bit, and moved some (20%?) of my stash around. I can't even tell you how I moved it, honestly, because I had no clue what I was doing. I don't even remember if I did an exchange or just changed by future purchase ratios, but at least I didn't just go to cash . . . it's more like I changed some of it to more conservative funds. Thankfully I only moved things in my then current employer's 401K, because I didn't know how to change my IRA, which had more money in it at the time. That's how clueless I was!
The good news is that my little freak out tinkering day didn't really do much and I fully recovered along with everything else. At the time, my boss came through our area and said "well, Warren Buffet says he's buying stocks right now, so that's what I'm going to do." I remember googling Warren Buffet, lol. That tiny random little thing probably saved me from completely fucking up and pulling it out at the worst time!