Here is what we are doing every where we go and every chance we get: Matthew 10:7-8 and Mark 16:17-18. What are you doing? It does say "those who believe..."
If one shark in 1916 could forever change the thinking in the US, including the shark experts, think what believing Christians could do by doing what Jesus said they could the way He said to do it.
"Looking good, driving safe. How about you?"
All i'm saying is be realistic about yourself and your influence...we are told to not think more highly of ourselves than we should.