Request for alternate targeted chime

I do like the chime that alerts me when something targets me, but I would like to request a different chime noise when an ally targets me as opposed to an enemy. Currently it's the same chime whether it's the group healer or mobs targeting me. It would be nice to have a separate audible queue for friendlies targeting me, or no chime at all for a friendly... I don't really need to know when I am targeted by a healer.

As a caster I'm often not watching everything unfold on screen, as I'm watching my, mana pool, progress bar, and global cooldown so I can deliver continuous DPS. The alert noise often makes me look up for incoming enemies for no reason.

Has anyone else noticed this, or is it just me?