Fun:I

i is the square root of -1.

e^iπ+1 = 0.

It is also a proprietary prefix used by Apple computer and Zod clothing.

Biblical References

The Bible encourages mathematical substitution:

An i for an i

also

If thine i offends you, then pluck it out

and

Behold, the is of the Lord GOD are on the sinful kingdom

And, in answer to Moses, "i yam what i yam."

Existentialism

i was a well-known Existentialist of the Guyanese school. Though not as well-known outside academic circles, he was best know for his famous phrase "É isto ele?".

Imagination

i is an imaginary number, and therefore must not be trusted.