Chaos Pup Trouble

[Petunnia93]

Ok, so i decided to run Black Temple and Sunwell Plateau again on Tuesday to see if the pets would drop so i could sell them or trade them. Got the Chaos pup again and Abyssius. Learned the void collar that summons chaos pup, put the extra in my bag and logged off. Logged back in later on and noticed i had an extra void collar, thinking that was odd i just learned it and put the other pet again in my bags. This happen two more times to where i had 5 total even though i only should have 2. This also happened with Abyssius, but i only have 2 extras of him. Not sure what to think of this, was thinking it was my computer or a glitch of some sort. So i logged in on another computer and sure enough, they were still there. Anyone have any thoughts on this? Just sent a bug report to blizzard. Maybe they can sort this out. Thanks
Petunnia