Setting this as a friend's lock screen or desktop background is a classic way to give them a brief (and harmless) heart attack.
Realistic radiating lines that look like the outer glass has been hit. 1920x1080 Broken Computer Screen Wallpaper">
Variations that include a "cracked" Windows logo or a fake "Blue Screen of Death" (BSOD) overlaid with glass shards. Best Sources for 1920x1080 Wallpapers Setting this as a friend's lock screen or