I seem to be a magnet for dogs. Doesn't matter the size. I would say most of them have been friendly, but because of circumstances the dog was anxious and bit.. and that's only happened half a dozen times in my life (package courier). For the most part I can calm down many a dog. I know they say don't lock gazes with an angry dog because it's a challenge, but I can make them back off and let me offer my hand in friendship. Once the tail wags, its all good.
Then again, the times I got bit Im thinking they were going after the bacon treats in my back pocket by my scan gun ... hm...