Advertisement You guys are using the wrong type of mesh! Mesh can be such a useful tool when it comes to cages and its a shame to hear you guys giving up so easy. You need to use a stronger mesh with a larger wire diameter and you will be living stress free. Check this out for more details on mesh: http://www.bwire.com/measure_wire_cloth.htm Specifically, note the part that is labeled "wire diameter". If you use a thicker wire, there will be absolutely no chance anything can find a weak spot and slip through.