Last time I serviced this account, someone had stuck a flathead screwdriver in one of my NW80 machines. The rough metal shavings around the key opening gave it away. This time around, there is no doubt money is definitely missing. I had maybe $3 in my NW S60 Skittles machine, and had vended 4/5ths of a head worth of product. I was expecting to see at least $40 in there. I guess the first step is to install a vend counter. But what else can I do? This guy clearly has a key to my machine, b