Game Mechanics: Double DT from Bazzt Zzzt

[Dentalplan]

Same thing has happened to us under similar circumstances. Charm pet was first to aggro and a chanter took the DT through the pet:

[Wed May 08 22:38:43 2013] Bazzt Zzzt shouts 'SANDII'
[Wed May 08 22:38:43 2013] Sandii has been slain by Bazzt Zzzt!
[Wed May 08 22:38:43 2013] Bazzt Zzzt's casting is interrupted!
[Wed May 08 22:38:43 2013] Stamps tells the guild, '-444- CH on Vehk -444- GIppy is next'
[Wed May 08 22:38:44 2013] Bazzt Zzzt shouts 'CADOV'
[Wed May 08 22:38:44 2013] Cadov has been slain by Bazzt Zzzt!