Was Jesus crazy (the fig tree)?

In Matthew 21:18-19 when a fig tree doesn't have a fig for him to eat Jesus condemns the tree to death. This story is not a parable. Jesus says to the fig tree, "May you never bear fruit again!" and immediately the tree withered. Just because a tree did not bear fruit when Jesus was hungry he made sure the tree could not bear fruit for anyone else who may be hungry. So much for turning the other cheek....