That's an awfully (physically) large resistor!Isn't there an exercise question in Horowitz and Hill that says something like "Why will you never practically exceed the rating of a 1/4 watt 1Mohm resistor?" ?
Jack, you gotta share the story behind this.I don't think I can type it up well, and can't find a link for it.
Why all the components on the bottom...smoke and mirrors?
Of course! IT BLINKS! Now all you got to do is add an IR sensor and a audio module that cry's DANGER! DANGER! when someone gets to close.
I've never heard of this joke before but as soon as I saw the board I laughed and laughed, it's hilarious.As an "oldie" I feel an microcontroller is a little bit overkill for the flashing though as a good ol' 555 would've done just fine. in fact with a few added components and a 556 it should be quite possible to get some cute random actions into the circuit while getting the impressionfactor up a bit.