To me this falls in the category:

Q: Doctor, it hurts when I press here
A: Then don't press there!

How about crypt( time,time ), or probably better:

my $time;
crypt( $time = time,$time );
[download]

Liz

Update:
Moved lexical outside of crypt(), as second $time would be undef because it would refer to a non-existing global $time (which shows nicely when using strict). Thanks to broquaint for pointing this out.