Blotto... I think you make an excellent point! We were lucky in that prior to the open, we had that new high to use to draw the 5 min trend line, so if we are waiting for the open, this would have never happened. But as you drew it, it looks pretty valid to to me if I wanted to take the trade before the open. So yes, there might be a long where you indicate "breakout". Now ND's rules are quite specific in that price needs to close above the trendline, so for the first long, it doesn't, but in the re-test, it for sure does. This might very well be a losing trade then. Its interesting how on the first long, with this bar being so small, the loss is not even 2 points.. heck, an exit could even be made for a profit. There was some good buying also when you consider the fairly strong two bull bars! Where you mark retest, this is also a tiny bar, so the stop loss is once again just over a point.
But, the next trade, the short, it sets up, and if you aren't emotionally damaged from the loss (which I as a new trader might be), but if you aren't, you can take the short, and more than make up for your loss. Then when the long presents itself at about 9:43 and 9:47 roughly, then this too propels you way into profit, more than covering your losses.
The secret is to think about this not on a trade by trade basis, but in terms of a series of trades. If you do this for 20 trades, I have no doubt that the winning points far exceed the losing points!
But I love that you point this out, because honestly, how you draw the trendlines really matters, and a place where I stumbled. More important is also knowing what to do when it doesn't work out and how you manage that. But if all of this is accounted for in a trading plan, the entry, the exit for a loss and exit for a profit, then none of this is loss, its just one trade that didn't work, one step before the winning trade.