I like your attitude, but I think you are over nervous. We all live with danger, but the fact is not all dangerous things will happen. Some things we do is not that dangerous like you told, and what we do is not what we always do! Just take it easy.
Thanks, I really appreciate your help.
But I think my leopard's neck problem is not caused by my RedFoot (May be caused by other tortoise before I have him, I do not know).
I learned lots of experiences through this forum. Keepers in my country know these, but usually do not take these so...
No, I kept this leopard with two RedFoot, since March 2017.
I found there are scars on his neck when I got him, the scars seemed old and getting better. You can see there's still one old scar in this picture. I put my leopard alone at the beginning, and after I found my two RedFoot are friendly...