And maybe the fact that you have to continue until the gun actually fires :|

but it's easier than thinking of a useful variable name.

I always use i because I'm too lazy to type out iterator when I'm making my garbage spaghetti code that will support infrastructure for years

I like it, i for int easy to remember. I also use i, j, k as u it vectors and remember at what depth of a multidimentional array in working at.