AAAAAAAA... (literally in this case!) I just solved my first pwn challenge with a buffer overflow. While the challenge itself was quite basic this is still a bit of an achievement for me as someone whose primary categories are web and misc.
@quirk a bad idea for a new window manager: actually overlapping wm where windows are slightly transparent and the click event bubbles through the top window down to all windows below it. Now you can click on two things at once!