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At one point in a Wikipedian's edit life one just becomes tired with either the project and/or with other users' behaviour/pedantics/idiosyncracies.
If you're merely suffering from sleep deprivation then turn off your computer and go to bed. If you are insomniac do some new page patrolling or vandalism fighting, this may eventually make you feel tired enough to enjoy a good night's rest.
Tired Wikipedians may add the following userboxen to their user page by adding the code next to the box.