The pattern is at once familiar and depressing. A union boss, employee or contractor has a gambling problem, goes deep in debt, and dips into the till to cover the losses – at least until records reveal a discrepancy and eventually point to the guilty party. The latest example of such self-destruction is Colleen Louise Rieck, a resident of New Prague, Minn., about half-hour’s drive southwest of the Twin Cities suburbs. Rieck, 53, until recently worked as a claims payer for Wilson-McShane Corp., a Bloomington, Minn.-based third-party benefits administrator for unionized employees; the company is certified by the Department of Labor under the Taft-Hartley Act. For more than a year until her arrest this May, Rieck had stolen more than $885,000 from her company, mainly to feed a gambling problem. On October 23, she pleaded guilty in Hennepin County District Court to six counts of felony theft. She is expected to receive a prison sentence of eight years and four months, plus 10 years probation.