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Even math problems
xkcd.com - Mistranslations - Mouse over says, "Oh, I think this word might mean 'Crisco'!"
xkcd.com - Frustration - Mouse over says, "'Don't worry, I can do it in under a minute.' 'Yes, I've noticed.'"
Dwarf Fortress - I may be the kind of person who wastes a year implementing a Turing-complete computer in Dwarf Fortress, but that makes you the kind of person who wastes ten more getting that computer to run Minecraft.
Tech Support - I recently had someone ask me to go get a computer and turn it on so I could restart it. He refused to move further in the script until I said I had done that.