[...Not particularly pleasant means, so Joker decides to avoid the truth.]

Heh, well, a good few of us in the orphanage got ourselves adopted by the man who owned the place. Since most of us, well, let's just say we were damaged goods, yeah? [He extends a finger to his empty sleeve.] So most normal things were outta the question even when we did get replacements.

But, well, circuses are things where everything is outta the ordinary. Seemed like the best solution, ha ha!