Duty Calls

xkcd.com · first added by @kale

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xkcd: Click and Drag xkcd.com · Jan 31 xkcd.com · Jan 31

Sandwich xkcd.com · Sep 24 xkcd.com · Sep 24

xkcd: Machine xkcd.com · Sep 24 xkcd.com · Sep 24

Standards xkcd.com · Sep 24 xkcd.com · Sep 24