[buugs]

I think the author is taking the wrong thing away from this, all those little realisations are things that if he comes across in the future he will have a better understanding of what to do.

In other words rather than become embarrassed after realising a months work boiled down to just a few lines think about how much you learned to get to those few lines.

[markerdmann]

His use of the word "embarrassing" is tongue-in-cheek.