I recently got Ghorbash (the orc from Dushniks) as a follower.I gave him some staffs to carry one being to summon a familiar.I was hiking up a hill when I saw a sabre cat.Then I heard a ruckus behind me,turned around and a familiar was attacking Ghorbash.Then the goats that the sabre cat was after started to attack him also.I thought it was a fluke but it happened again.I finally took the staff away from him.Has anyone seen this before?

Sure you didnt gave him Wabbajack? http://www.uesp.net/wiki/Skyrim:Wabbajack

No.I don't have it yet.I thought it was a wolf at first until I got closer.Then the goats came after him and they had red dots on my compass.

i dont know if spriggans can turn your own familiars against you but i know they can make any animal attack you, maybe one got your orc friend, that would explain the goats at least

I think there were spriggans there.They can turn your own familiar against you?That's scary.

i would not jump to conclusions, they are most likely the reason the goats attacked but your friend coul'uv just made hs own familiar mad somehow (hitting things, magical or not, tends tomake them agressive just as well as a curse form a spriggian)