Jakobi could tell the dragon was amused.  At his size, he imagined how hard it would be to take this situation seriously.  "Yes, believe it or not I'm the new guy here." Jakobi replies to the dragon as he gives him a friendly smile.  "I've never had any experience working on dragons before.  But, it's all relative.  I'll just take a look at that bad fang of yours and we'll be through."