No its not a rank thing. Both me and the hubby have on occasion taken our rather large hairy hound to work with us when the need has arisen. Both NCOs. I'm fortunate to work in an area that is quite secure and the boys quite like having her around.
Hubby has his own office, so it doesn't bother anyone else.
Have to say though, I do think that only well behaved dogs should be allowed and under full control of the owner. My Station also has a policy whereby all personnel in the section concerned have to give their approval first along with the Boss.
It's not something that we do as a matter of course but when a situation comes up that is unavoidable then the ability to take her with me to work has saved a lot of trouble for not only me but work too. I know its our choice to own a pet but it is comforting to know that work can be accommodating should the need arise.