Adjust ringer volume > 0 WITHOUT SOUND!
Using Tasker to adjust ringer volume to anything > 0 automatically plays a sound. Checking 'sound' in the task plays an additional sound.
I use Tasker for automatic sound profile switching based on several factors including orientation, day of week and time of day. Every time a task sets the ringer volume to anything other than 0 I get this 'beep' and it is incredibly annoying when it happens 3-5 times a minute when orientation changes enough to trigger the task