Wee woo! Wee woo! What an alarming, yet melodic tune, and so classic. What's that you say, Squishable GO! Ambulance? It's not classic? You're trying an entirely new cutting-edge siren sound? Ah yes, now I hear it - regular ambulances say Wee woo! Wee woo! Way to follow your own tune! I feel like both little ditties get the point across, and either one is an improvement on just yelling at people to please move!