I mean, how many times have you encountered a error on a webpage, and thought, "hmm, these developers are way too cool"!
check out the banner label, above the menu. (click image for larger view):
I just finished my day's work, had a few minutes to kill. And site hopping brought me to gskinner.com's blog. So was just checking out the tiny experiments on their banner, and came across their waveThing experiment. I saw it slow down after a few seconds, and just as I was thinking.. "uh ho, this thing has some performance issues", bang! the SWF refreshed itself and showed me this error report. How many of us developers account for issues like slowing down framerates after all!