By Erik Engman Author, Clown and Improvisation Teacher, Theatre Critic EatMoreArtVegas.com IG: ErikReviewsVegas   There are three things I can always count on at Christmastime:  All I Want For Christmas Is You  by Mariah Carey everywhere I go, coal in my stocking (from my cats), and the classic tale: A Christmas Carol . There have been a multitude of adaptations on film and stage, and this year Broadway Stage Collective and Signature Productions have gifted us A Christmas Car