(Honestly more portal than hammer, but....)
When you attempt to autosave before doing something dangerous or risky IRL.
yishbarr wrote:
I risk my life on the road, and I don't do any autosaves. I just fasten my seatbelt, because it gives me more HP.
oh dear... 
yishbarr wrote:
I just hope most of these things are just jokes and not real things.
I wish.
yishbarr wrote:
When you notice that the sky in your country is bluish-purple.
Wait how is that hammer?
Anyway, when you have so many cool unreleased concepts you've made but not enough inspiration to make a map, so you just keep making more concepts.
Arachnaphob wrote:
When you press F9 to compile in PTI.
But it works.
yishbarr wrote:
I just hope most of these things are just jokes and not real things.
may i direct your attention to this article.
http://en.wikipedia.org/wiki/Tetris_effect
it's a very normal thing apparently.
CJLERCH wrote:
You try to hide an object to get a better view of something behind it.
isnt that normal?
tile wrote:
When you go to portal websites so much that google adwords catches on and advertises the perfect laquinta hotel room to stay in.
Wherever this is I'm going bye.
and, also, when you see the following artwork and the first thing you see is glados:
http://fc02.deviantart.net/fs48/f/2009/ ... 3AD3AD.jpg
...even though the artist denys it.