How upsetting... Just remember, it's their loss!!

I can't say I've ever experienced anything like that with Samantha. Usually I get annoyed because people will just run up and start petting her without asking first, which works with Sam because she's so friendly but may not be the case with every dog. I'm always having to ask them to back up and let them know that they need to ask permission to pet her because not all dogs are nice like she is.