Add indexing from 1 and it would be perfect.
— Stan Kelly-Bootle
1. People who index from 1.
1. People who index from 0.
(Dammit, as of Perl 5.16 this is not merely deprecated but outsourced to a module ... mutter, grumble)
Another would be Rebol:
>> a: [0 1 2 3 4 5]
== [0 1 2 3 4 5]
>> a/1
== 0
>> a/2
== 1
>> a: next a
== [1 2 3 4 5]
>> a/1
== 1
>> a/2
== 2
>> a/0
== 0