Coolest Parents EVER Build Son A Roller Coaster in The Back Yard! [VIDEO] [POLL]Coolest Parents EVER Build Son A Roller Coaster in The Back Yard! [VIDEO] [POLL]Wow, talk about some cool parents! No sandbox for this three-year-old boy! Oh, no! His father builds him a roller coaster in the back yard!Lisa LindseyLisa Lindsey