Do you want a frolic through New York’s demi-monde of the 1930s? Do you want an evening that is just plain fun, one that is breezy and carefree? If so, Guys and Dolls is for you. The Sierra School of Performing Arts is currently performing this gem of a musical at the Robert Z. Hawkins Amphitheater at Bartley Ranch. Do not let the school name fool you. This big, splashy production is as professionally done as you will get this side of Broadway.