Players readying actions outside combat?

@mikemearls @ChrisPerkinsDnD Players readying actions outside combat? My players often ready fireball "for when they see something hostile."

— Jonathan C. (@SpeedboatJones) January 24, 2016

Nice try. They can only use the Ready action in combat. https://t.co/IAoQBsIF2w

— Christopher Perkins (@ChrisPerkinsDnD) January 24, 2016

@ChrisPerkinsDnD huh interesting what if its a situation where they EXPECT to go into combat and want 2 be ready in case something happens

— See Me In D&D (@mAcChaos) January 24, 2016

Just because the players *say* their characters are ready doesn't mean they are. That's what initiative is for. https://t.co/Cskz59hlzw

— Christopher Perkins (@ChrisPerkinsDnD) January 24, 2016

Ready requires action and concentration – group would need to move slowly, any disturbance could lose spell. https://t.co/otwo7vUNe3

— Mike Mearls (@mikemearls) January 24, 2016

@ZarconistPreist @SpeedboatJones @ChrisPerkinsDnDWait If you ready a spell and dont use it isnt the slot lost? not 100% sure – not sure if that was clarified in later printings (got a 1st print here)

— Mike Mearls (@mikemearls) January 25, 2016