After spending 12 hours a day for six months filming in prison, local actor-entrepreneur Tommy Wong has one thing to say: "Don't commit crimes." The 40-year-old and founder of Nothing But Cheeseburger (NBCB) plays inmate Chan who is behind bars due to involvement in gang activity in the new English drama Yes Captain!. The 65-episode serial follows three fresh graduates — Kheng (played by Clement Yeo), Sani (Zhin Sadali) and Charlize (Tasha Low) — who join the Singapore Prison Service (SPS), each driven by different goals. "There are days when I film for two weeks straight. Every day we had to be there at 5.30am to clock in and we only…