xkcd #2817: Electron Holes ( imgs.xkcd.com )
Title text: They tried to report me to the authorities, but because I had the device they couldn’t charge me.
Transcript[Ponytail, who has her fists clenched and a black smoke cloud above her head, is standing in front of a desk, a beam of electron holes is being fired at a printer on the desk; the beam is shown reacting to the printer, dispersing lightning bolts and ‘particles’ but causing no obvious damage. There are little ‘+’ signs distributed along the beam and in the circles around the printer, though they’re much easier to see in the higher-resolution version of the strip that’s displayed if one zooms in on the original comic page.] Ponytail: This doesn’t even make sense! They’re quasiparticles, not real-
Off-panel voice: Pew pew pew
Ponytail: Stop it! [Caption below the panel:] Physicists got really mad about my device that fires a beam of electron holes.
