well, if there are people who are racist, then biscuit is definetly a breedist. here's our situation, as i can best describe it.
we got bisc when she was about 5 weeks - she was an "add on" on a rescue transport i was doing, and when the person after me on the run dropped out & the 9 dogs stayed at our house overnight until we could rearrange the run, well, biscuit just never left.

when she was about 1 year old, our neighbors got a german sheperd pup; they have NEVER allowed their dog to play with any of the neighborhood dogs. A lab across the street, 2 goldens down the way, the 3 bichons the other way, my 2 girls, they all play together fine. but the sheperd was always dragged inside whenever any other dogs went to invite her to play.

now they have a fenced in backyard, so their shep is rarely seen by the other dogs...
BUT. bisc & zoe & i often go to the dog park, where there are sometimes sheperds. i adore them, and zoe LOVES to run & flirt with sheperds. zoe is an adopted failed seeing eye dog, so when at the kennel she ran around with many many other sheperds. so she loves them & will actively seek them out & play bow & bounce & wiggle & roll around in front of them until they chase her round & round. no problems. biscuit on the other hand dislikes them with all her heart.

she will do the elvis lip & bark at them & tuck her tail in and run the other way. but it's not that she's scared of them, because she will also charge them from across the park angrilly.
if i ever thought biscuit would actually do any damage to another dog, i would never ever take her to the park again... but she's almost 3 & she's never put her teeth to anyone and i honestly don't think she has it in her to do so. zoe i know has the potential to be a butthead, but biscuit never. but i'm not sure what to do about her breedism. i have no way of knowing what happened in her first 5 weeks of life, she may have been bullied by a sheperd before getting dumped in that ditch, i don't know...
what would y'all do?