How to avoid the 'curse of knowledge' in discussing protection insurance

I took my car in for a service last week. Whilst waiting, and enjoying a rather good coffee in the lounge, one of the engineers popped out to have a word with me. He unloaded a stream of "car technobabble" at me. Something about traction and balance and that it could be dangerous for my tires. Holding up my hand to stop the torrent of tech, I ask him to translate what we was saying into plain English. In fairness, his second attempt at explaining the problem did the trick and I understood...