Pathfinder/Summoner abilities question

[Tykune]

I have a friend who used the pathfinder ability to discard one card and place it back on the top of the deck, then kick open the door.. but they used the summoner ability to discard a card to take the top monster if they discard from their pathfinder discard, before even kicking open the door that their pathfinder ability said to do. Is this a possible move?

[MunchkinMan]

Just to be clear, the Pathfinder ability allows you to look at two cards from the top of the Door deck, then discard one and put the other back on the top of the Door deck. That discard does not count as a card discarded for using the Summoner ability, or any other ability that would require a discard, because that discard was part of using the Pathfinder ability.

The general rule is that you can't "double dip" on a card discard. I honestly can't think of an exception to that rule.