By Megan Shaw & Tim Hanlon A mum claimed herchildren were nearly crushed to death after a ride crashed at a Yorkshire fair. Chelsea Rogerson, 34, said she was left screaming to be released from a ride she was on with her daughter after seeing the waltzer, which her son was on, crash at Fair Ground Plus, in Cleckheaton. The mum of three who took her kids for a “treat” with her husband Matthew, said she has now been left “unable to sleep” following the “traumatic incident.” Chelsea said she is in “disbelief” at what happened and she wants to raise awareness of the dangers of fairground rides to …