One is obviously for the personal use of the genius who wrote the note. (via
 


Ew! He didn't even lift up the seat! (via)

 


Coffee burn! (via)

 


Lee should report Steve's "XO" to HR.  (via)

 


As an optimist, I see the sink as half-empty. (via)

 


It's "demasiado," dum-mas. (via)

 


Every picture tells a story. This one looks disgusting. (via)

 


I guess "please flush" wasn't doing the trick. (via)

 

Updated 2/10/14:


Please make sure your kitchen notes adhere to AP style, thx. (Via)

 


Easier than trying to figure out what that little icon on the tray is supposed to mean. (Via)

Sources: Redditor millenseed | Carrie McAteer | Fail Blog | Redditor mbtemplin | imgur | Passive-Aggressive Notes | Benjamin L on Flickr | Crazy Crackerz | The Daily What | Redditor Texasveteran | Jeremy Latta et cetera | Kyle K. | Redditor ben_smith_123 | CollegeHumor | Pleated Jeans | Redditor dubman42 | Redditor bazzaretta | Redditor jaybill | Redditor Bince82