Fun times.
Think the worst one was we had some code that would add a pad in somewhere after the page was rendered that would cause IE6 to redraw the page correctly.
public static boolean TRUE = true;
I've directly asked if they think TRUE will some day need to be set to false but they just ignore me.
It will happen one day, it will go into production, and the app will work surprisingly well with some subtle glitches. After revealing all contractor devs will make poker face and things will continue as before.
Anyway the big day comes, we turn it on, everything looks good, everyone is happy.
A few weeks later I noticed we forgot to turn one of the flags on. So I asked a teammate what he thought. He shrugged, we figured it would be slightly better to turn it on.