If you’re not an engineer, this comic is all about the situation:
If you’re an engineer, in particular an electrical engineer, the punch-line is the second frame.
(Some of the labs I tutor are disturbingly close to this.)
It reminds me of xkcd - reasonably often I read this great webcomic, chuckle, and think of the scant half-dozen people I know that might get the gag (Exhibits A, B, C, D, and E; extra-credit for the comment attached to the image: roll your mouse over the comic).
The warning on the site sums up the content:
Warning: this comic occasionally contains strong language (which may be unsuitable for children), unusual humor (which may be unsuitable for adults), and advanced mathematics (which may be unsuitable for liberal-arts majors).
Nerd gold.
