You’re hiking along on a hot summer day, and that clear, cold stream you’ve just crossed seems too good to pass up. Leaning down, you scoop up a handful of water and drink…
…unless you’re a microbiologist, of course. In that case, you put a drop of that water under a microscope and catalogue the life swarming through it. If you’re a hip microbiologist, you film the results and put it to a squishy sort of steampunk soundtrack.
Kind of like this.
(Hat tip to Inge.)