The Oatmeal
 

Instead of posting this in the picture thread I thought I'd give credit to the author since this site is funny as hell and the quality is tremendous.

http://theoatmeal.com/comics

http://theoatmeal.com/comics/zombie_how

http://theoatmeal.com/comics/halloween

http://theoatmeal.com/comics/marcellus_wallace