Ok, here is the situation. Out walking with my family this evening and we found a tortoise walking down the street. Obviously this guy isn't native to Texas. He looks just like our Russian, only he is at least twice as big. Obviously, we can't put him in with our smaller Russian. I'm making a sign to go post in the area we found him, and hopefully his owner contacts us very quickly. In the mean time, I'm putting some of our extra orchid bark, water, and food in this tub. I've go an extra heat lamp I can rig up for him. My question: what do I do? Is there proximity risk of transmitting sickness to my Russian if we let him stomp around in our Russian's walk-about area? What can I do to make his stay comfortable while we search for his owner. I don't have another large area to house him in! I'm 99% certain I made the right decision to NOT let him keep wandering down the road, but if one of the experts here can give me some peace of mind, it would be much appreciated.