|Do you know where your variables are?|
The fact that the problem occurs rarely-but-consistently pretty much establishes that what you have is some kind of rare-but-possible race condition bug in your code, ...
More guff. Panics are usually indicative of a bug in perl. User code should not be able to cause them.
When are you going to get bored of spouting nonsense?
With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.