2 things programmers tend to underestimate:

1. How long things take
2. How long our code will be around
3. How many things we underestimate

When "thousands of screaming fans" was part of the job description,

I didn't expect it to be in a server room.

margin: 0;
padding: 0;

…

margin: 0 !important;
padding: 0 !important;

…

sudo margin: 0 !important;
sudo padding: 0 !important

Saying you’re really good at TDD is like

saying you’re really good at looking both ways

45 times before crossing the road.

Schrödinger's cat applied to web development:

If I don't look at it in Internet Explorer

then there's a chance it looks fine.

QA Engineer walks into a bar.

Orders a beer. Orders 0 beers. Orders 999999999 beers.

Orders a lizard. Orders -1 beers. Orders a sfdeljknesv.