You might prefer

for ( my $i = 10; $i--; ) {
  # do something
}
[download]

I regularly walk array indexes backwards, as you can shave a few cycles off of the standard

for ( my $i = 0; $i < $array_size; $i++ ) {
  # whatever
}
[download]

logic that people love using in those languages that don't have a 'foreach' command.