Hi there! I’ve had dogs in my family ever since the day I was born- I actually took my first steps to our family’s German Shepherd. Experience working with fearful dogs, dogs from bad situations, etc- for example, a few years ago, I walked a friend’s dog who had been rescued as a stray and was fearful/reactive to people and especially so towards bicycles and never had any incidents over the few years I worked with her. I have been pet sitting dogs, cats, horses, etc for as long as I can remember. At my house, sadly I can’t have a dog but I have two fat and happy guinea pigs! I also handle large (and sometimes very rude) horses on a regular occasion so I promise I won’t be intimidated by your Great Dane! Let me love your pets while you’re away and I promise you’ll be satisfied!