HOUSTON - A Texas federal judge on May 29 certified a collective action consisting of servers, waiters and waitresses - excluding "expediters" - employed by a steak restaurant who allege that they were denied overtime, forced to participate in an improperly maintained "tip pool" and required to use tips to pay for broken glass and people who walked out without paying their bills (Sharon Flowers, et al. v. MGTI, LLC a/k/a Mo's Steakhouse, et al., No. 11-1235, S.D. Texas; 2012 U.S. Dist. LEXIS 73900).