Just like on a normal weather behaviour, it will not lasts for long period so definitely when there is a storm you will stay at home and began lurking on other things.

In crypto, a downward trend is a normal scene. Especially in bitcoin, there is no such thing as continous pump without a crash that's why we have a thing called correction to see how strong the support in a certain price level in the faced of FUD and negative speculations. Why should we get out if we have lots of things to consider that price will soon pump back. Take the price dip as entry point to make another round of buying coins. It's not a wise on the other hand to make a dump while you are already on loss. Face the risks instead.

*not applicable on other altcoins