If we're in a group that hate against gambling, we also need to act like the same in front of them, but after we leave from that group, we can back to our real personality.
Nowadays it is easy to play the good employee role. I do so and it is easy because I never talk about gambling or anything related because people here are religious and they don't like gambling, I act like I am one of them while as soon as I go home I fire up my browser to gamble a bit. I have been bold enough to open the casino in office through 4G connection in my mobile phone sometimes as I have a good privacy screen, I know this was a dangerous move but sometimes gambling get the best out of me. Of course I don't suggest anyone to act like a gambler in a corporare environment.