Those Greek gyro logs are more than 40% sheep testicles. Trust me, its true. The rest is other various unmentionable nasty bits.
Of course, "the unmentionable nasty bits" are usually the tastiest part of the beast.
Growing up in an Eastern European household (where no pat of the beast was wasted) taught me that at an early age.
So, "Nothin awful about the offal" as far as I'm concerned.
I believe that if you are going to kill a living creature for food, wasting any edible part is just wrong (and besides, you'd be missing out on some tastiest stuff).
Seems to me like a spinning hot flame roasting hunk of gyro mush is the perfect place to use it (and hide it. LOL.)