Game On: Precognition or Telekinesis?

In our Pathfinder game a couple days ago, the group went to clear a peluda (a spiny dragon-like creature) out of an abandoned fort. Having encountered one before and just barely managing to live let alone defeat it, we prepared ourselves well. Still the beast managed to surprise us without our main defense up (Communal Stoneskin). Not only that, but it was able to split the party in half: summoner and cleric on one side, the monk and ranger on the other. Sometime during the fight, the cleric started to cast Searing Light (a 4d8 damage spell). While Roy (the cleric's player) was rolling, Nathan (the summoner's player) yelled out "1,1,1,2". Needless to say, what followed will be a running joke of our group for a long time.