had the craziest dream last night

I had a dog or was in charge of my friends dog and its this derpy cute small thing, I put it on a leash and we're walking over a bridge and things are good. There's a bunch of other dogs and owners too when this one black little ratty dog really close to the left starts biting at my dogs leg and won't stop he's really like a rat on a leash and no matter what he won't stop and I say something to the owner like 'get control of your dog' and frustrated I look up and he's this guy in all black with sunglasses that genuinely creeps me out and reminds me of his dog and very calmly says 'they're just going to do what they want'.