Rhode Island’s Division of Taxation turned into a literal Mickey Mouse outfit this week when 176 refund checks were accidentally mailed out bearing the cartoon character’s “signature.”The checks, mailed Monday, were signed “Mickey Mouse” where General Treasurer Seth Magaziner’s name belonged, and “Walt Disney” in the spot reserved for State Controller Peter Keenan, according to multiple reports.The “test signatures” were mistakenly misprinted on the checks due to a “technical error” in the