lol, re: AMZN, well you are definitely correct.
Example (yesterday), held 900 shares overnight Wed., covered during premarket yesterday for a grand or so, started-off adding to my gains w/ quick scalps; however, it took off and I was left looking at -1200. But, as we know, markets tanked and I got lucky and ended-up doing pretty well.
If you don't have a defibulator, I don't recommend it. :)
That said, I've been watching/playing AMZN for awhile now and just don't see it going much higher, esp with the RSI getting up there, which is usually when I start to build a short position.