Possible Clues:

• Pushes back, say
• Shows shock, perhaps
• Flinches or blinks, say
• Takes the bait, say
• Is this how one makes a response to the bits of play
• Is this how one responds to traces of this mixture?
• Plays again for traces of this
• Looks shocked, e.g.
• One plays again, perhaps, with the broken crates
• Plays this a second time?