Quite guilty, but I bought in at the lowest price last week. I bought around 11:15 am EST Friday, when VTI was down about -3.3%, and it ended that day down -0.7%. I also did a Roth Conversion that same day.
All of the news focused on fear of coronavirus, other news was bad as well, and every index seemed to have losses. It was a gut feel of panic and dread. When it's that extreme, it's usually too far... my style of "bond tent" actually waits for market losses, and then increases my equity allocation while rebalancing against the losses. So this fits with my approach.
I can't predict next week - it could continue. But after -15% in losses, is it more likely to push all the way to -30%, or stabilize somewhere near -15%? I tried to remove panic from the situation, and see that the entire market is afraid, and decided to buy.