My dogs can act very weird. My dogs, whos names are Harley and Abby, will bark their heads off or lick you to death literally, bite you and draw blood, ect. But it seems like they know when eachother need things like when Abby needed to go out, Harley woke my parents up and he didn't need to go outside to use the bathroom for dogs which is our yard. My dad said something like when our dogs sniff eachother, they know what the other needs. Dogs can be delicate and can be very mean such as if you make Harley mad he may bite you or lick you.