Eric Boles, this logline is fun, fast, and sets the tone right away. The stakes are clear and the premise is offbeat in the best way. To take it a step further, you might consider adding a touch of detail about the mascot itself (e.g., is it a person in costume, an animatronic, something else?) or what makes the employee and his friends uniquely ill-equipped or hilarious as protagonists. A little more specificity could heighten both the humor and suspense.