I dunno, I like second being a bad choice, the number of times it is useful are very few. `!! 2` is much more straightforward. In contrast `last` is impossible

I dunno, I like second being a bad choice, the number of times it is useful are very few. `!! 2` is much more straightforward. In contrast `last` is impossible to do that way and `head` is part of the underlying data structure (as in it is a linked list, so has head and tail) so is a gimme.