Hey!! I have a crazy/smart Cockatiel, Eli, I came home sunday from church and he was out.You guys might remember that I have a cat too. So that was really dangerous. I thought I had left h im out.....didn't remember having him out before church. Sure enough after I put him back, as I was tired and needed to lay down, he opened his cage, I heard the banging.....and looked and watched him get out. He has one of those breeder cages tghat the door will stay up, an dthere's another door in the middle.....he got out of that one. Then this morning he was out when I got up this am.... I put a lock on it this morning, so that the cat can't get to him and he can't get out, but what do I do if he opens the whoel thing? OI only have the one lock!!!!!!!