to be avoided.

if you're trying to put together a screencast, do not vaccum the day before you plan to record the final take.

because then you might vacuum up your microphone, and in your still-slightly-Luddite haze, you may just yank the thing out of your vacuum and go on your merry way, vacuuming up large objects.

and then you may plug in your microphone, and find that it doesn't work.

something to think about.