You might have heard of Sacramento's dinner theaters: Suspects Dinner Theatre aboard the Delta King, Tommy T's Comedy and Dinner Theatre and the recently closed Garbeau's Dinner Theatre. So after attending dinner theater, why not stop by Sacramento's only dessert theater? "As far as I know, we're the only one in the world," said Thomas Kelly, Thistle Dew Dessert Theatre owner, founder and artistic director. Kelly, now a retired copy/printshop owner, was a playwright for about 20 years before he opened the theater in 1996. In 1992, he and his wife Eleanor Lediard purchased the 1894 Victorian, 1901 P St., where the theatre is housed. "It had been a drug house before we got it, totally tr