Safe Enclosure?

Hi all,
I have been reading some horror stories about their BP's escaping from their enclosures. I am very protective of my girl and would freak out if she escaped and was in danger. Right now I have her in a tank with a sliding mesh screen on the top with two clamps that prevent the screen from pulling out. There is also a place for a lock at the front of the the screen. Does everybody think that a locking, sliding mesh top is sufficient to keep Gozer from escaping? If not, does anybody have any suggestions.
Thank you in advance.

That will be fine. The hole for the lock is to keep people out not keep the animal in. I have two with the same lid and have never had an issue.

I have that same exact screentop.

I keep Kaa in there and he likes to beg to get out as soon as he sees me. So far that screen and a little mini lock has worked beautifully. He very rarely pushes at the top, but I have tested pushing and pulling it myself and it is very very sturdy.