I'm leaving my job and am starting the process of handing over to my successor. My boss is holding out on letting me know my bonus for the past year - I suspect she is going to try to give me nothing and is waiting til the last minute as the only "power" I have now will be gone once the handover is complete. She is very flaky so I might be being ungenerous but last year's bonus allocation caused a ruckus so I don't really think so. What should I say/do?