Yes, the shock of having ice water poured on your head usually prompts some level of giggling & screaming.
Jeff & I had a specific reason to do the challenge in silence, as you'll see in the video. And no, ours is not the video referred to below.
THIS is what's been called "THE ONLY ALS ICE BUCKET CHALLENGE VIDEO YOU NEED TO WATCH" - by the son of the wonderful woman we're dedicating our challenge to - and hear her amazing singing voice - pre-ALS - in the tribute video included.
You can help - at ALSAFL.org.