Heavy is not an adjective you can apply to Zac's.
Noisy, chaotic, scary, wonderful, thought-provoking, educational, rumbustious, heavenly yes; heavy no. In fact I was recalling an incident while listening to the talk on church and kingdom yesterday. It involved a couple of drunks, a bowl of water, and a humble man. I wrote about it here
That's how you teach about God's kingdom.