I was clear on the rules where it said that an ice can be rezzed only when the runner approaches it - However in this videohttp://www.youtube.com/watch?v=YnIOzOy9pfQ
We see the corp install a woodcutter and right away rezz it in order to advance it.
How is this possible? Is it only for a woodcutter, or is not playing by the rules?
Thanks in advance.