For Better or For Worse -- Thursday, 3/3/2011
http://www.fborfw.com/strip_fix/
(if viewing this after 3/3, you may have to look in the archives)
The cartoonist's comments underneath the strip are particularly disturbing. This particular strip is about hockey, but it could be just about any youth sport.
Neither of my parents were particularly interested in sports, so fortunately I wasn't subjected to one of those obnoxious "sports dads" (or moms).