Excerpt: "Officials at an elementary school south of Boston have banned 
kids from playing tag, touch football, and any other unsupervised chase 
game during recess for fear they'll get hurt and hold the school liable."

http://news.yahoo.com/s/ap/20061018/ap_on_fe_st/playground_tag_ban

-- 
http://ai.eecs.umich.edu/people/dreeves  - -  search://"Daniel Reeves"

Two hydrogen atoms walk into a bar. One says, "I've lost my
electron."  The other says, "Are you sure?" The first replies, "Yes,
I'm positive..."  -- submitted by Dave Morris, 2003