someone stole my cell phone and i am pretty sure who did it. i want to confront him and try to get it back. i left it on the table at a restaurant and went to the bathroom and when i returned i realized the phone was missing. also at this time i noticed someone from my group had left their hat on my chair. i never thought someone that i was eating with could have taken the phone; i originally assumed it was taken by a restaurant employee. now i realize it is unlikely a restaurant employee would be so brazen to snatch a customers phone right in front of other patrons, who were all sitting around my seat. the tricky part is - this was a holiday dinner thrown by my employer for all of the people who work in our office. the guy who took my phone is a coworker. i didnt know this until much later, but i found out that he said some very offensive things and got beat up by the open bar, making a total ass out of himself during the dinner and when the party moved to another bar nearby. offensive enough that i think he should have been fired for his behavior. he even asked if he was going to be fired. he got a verbal warning the next morning. i want to confront him and ask for the phone back. if he denies taking it i am going to say that a witness saw him take it and if it isnt returned im going to involve the police. i can also threaten to tell the CEO and other management about what he did. but if it backfires? that might be awkward. i want my phone back. any other ideas or tactics come to mind?