Size gap dog siblings?
I currently have a rescue 4 lb terrier mix (and a 10lb cat). I want him to gain some weight, so ideally he will be 5-6 lbs at his healthiest. Would you ever trust a large breed dog around a dog his size? Has anyone here had a large size difference between their dogs? I am hoping to rescue another dog within a year or so, and will be doing so through a foster based rescue because I want a dog that has successfully lived with cats before. My dog likes other dogs and has been around dogs of all sizes and he either is their friend right away, or does eventually warm up to them. I guess im concerned less about aggression and prey drive, and more concerned about accidents. The dogs will likely never be together unsupervised and I am an experienced handler. I have had other dogs, and professionally work with dogs as well. I have seen successful large size gap dog siblings, but I'm curious to know how them getting to know each other went?? Sorry this is vague, I do not have a specific dog or size in mind as I plan on rescuing (though i may consider a breed specific rescue if i decide on a breed I connect with) so im not entirely sure what the next breed I will get is, but I do tend to lean toward larger breeds and wanted to hear opinions or hear personal experiences with this.