I got this idea from my Mum. We were watching some criminal drama show, I think it might have been Criminal Minds, but someone said from the middle of the woods "Get an Ambulance!" My Mum responded, "What, the woodland ambulance?! HAH! They could never get an ambulance in there!"
The phrase 'woodland ambulance' got my brain thinking fast enough to reply with, "Can't you just SEE the birds flying along carrying a drip or something..."
Obviously I had not forgotten Snow White from my younger childhood days.. As well as seeing Snow White in this, it also makes me think of Bansky- especially his Tesco carrier bag flag.