Reject Notification on first reject

Greetings,

Anyone know how to get a notification for a reject vote on a given role within the same task. 

We have several roles within the CR Approval task on a Change Request.

Rather than wait for all roles to vote before notification of outcome is sent, it would be helpful to have option to get a notification based on any reject when it happens.

We could use the diamond parallel task for all our required roles.

But this is a bit clumsy.