Sometimes I get something on the smartphone screen. To check if it is part of the page, or dirt on the screen, I scroll to see what happens. Most of the time, the item is above a soft key, so it can often only be cleaned off by blanking the screen first.
This prank shows a small hair, and when the screen is scrolled, the hair stays in exactly the same position. When the screen is blanked it disappears, only to return later.-- Ling, Feb 16 2017 Or cracked screen app. Sell a corresponding "instant cracked screen repair app" and you're set.-- ixnaum, Feb 16 2017 Can the hair have a few pixels that if the user manages to touch, pops open with a DNA profile. Maybe a famous stalker, or famous individual you would have loved to have met. Friends and family would have to help with names.-- wjt, Feb 17 2017 The cracked screen is a good addition. How about remembering those "Good old days" by having a permanent coffee cup stain and a few ink blots?-- Ling, Feb 17 2017 I once posted an idea for a small mark that would appear on a computer screen and invite a scratching response to get rid of it..... I must have deleted it as I cannot find.... though it could still be lurking under an obscure title. I simply cannot be bothered searching for it.-- xenzag, Feb 17 2017 Any prank involving a simulated hair where it should not be fills my heart with butterflies and sunlight! Thank you, good Ling!-- bungston, Feb 18 2017 I do like the idea that swiping at the virtual hair might occasionally manage to move it around the screen.-- bungston, Feb 18 2017 Sometimes the hair could be replaced by a tiny, moving bubble under the screen protector...-- 8th of 7, Feb 18 2017 At some point doesn't the prank have to shown and signed for the kudos.
'This, here, has been brought to you by ___________"-- wjt, Feb 18 2017 // swiping at the virtual hair might occasionally manage to move it //
Heh, even better....how infuriating that would be!-- Ling, Feb 19 2017 // 'This, here, has been brought to you by ___________" //
"This here hair, here, has been brought here to you by ___________"-- 8th of 7, Feb 20 2017 I know an inspector who found an ant crawling around inside a ruggedized display - almost too small to see, but definitely there. It was a unique inspection find.-- normzone, Feb 20 2017 That could have been anticipated. Antiseptic might have worked?
<Groan>-- Ling, Feb 21 2017 Groan. That took me about five seconds and a couple of reads to figure out, and another five or so to formic an opinion.-- normzone, Feb 21 2017 random, halfbakery