I once got a call from a co-worker shortly after midnight saying that when she'd cashed up her till, she was twenty down, so then she cashed up my till again (e

I once got a call from a co-worker shortly after midnight saying that when she'd cashed up her till, she was twenty down, so then she cashed up my till again (even though I'd done it before leaving) and I also was twenty down. Didn't hesitate; called the area manager and told him the facts and nothing more. Never saw her again. Don't skim from your co-worker's till.