I was gonna have ansi to show the defects, but the forum doesn't like it. I'll take pictures later to fill in the gaps.
However, looking closely at the area around the latch, I noticed two tiny gaps (about 1/6th" by 1/2" each) where the latching mechanism on the lid fits into the bottom:
I used a folded napkin to plug the gaps, and it worked well for several days. However, this moring the napkin was not in place, and there was only one frog in the bin. I found the other one's prophetically squashed body at the end of the hall. I checked on them last night because their hygrometer was malfunctioning (it got water in it), and they were both fine. I don't remember if the napkin was there when I finished, but I'm sure I would have noticed if it wasn't there. The computer is in my room along with the frogs, so there's lots of traffic at all hours. Someone else could have looked in on them too and forgotten to replace it. I have moved the remaining Sipp into another bin temporarily. He's fine, and the
Still, the blame falls entirely on myself. Everything seems to have come together for the worst possible outcome. I'm amazed that the frog managed to find the gaps not once, but twice, as they cover only 1 inch total in a bin that's 16" by 16". I'm very sorry that I have caused two frogs to die needless and entirely preventable deaths. I just want others to learn from my mistakes, so hopefully no more frogs will perish:
Mistake #1: I should have examined the bin more closely before using it.
Mistake #2: I should have changed the bin when the frog escaped the first time, instead of relying on a jury rigged fix.
Very hard and expensive lessons to learn.
Stupid, stupid, stupid...