4ed game, we are attacking in a tavern and the room is set on fire. We defeat the attackers and go to put out the fires before they spread, quick improv skill-challenge.

One of my allies is a Druid with the "Chill Wind" at-will, which does AoE cold damage and forced movement; but when he's fighting the fire, he is trying to smother the flames with a cloak and athletics.

"<druid's name> can't you summon the freezing wind?"
"oh... right. I forgot!"