Legit service dogs are impressive, and we can be thankful for them.
There are a lot of people who say they have a service dog when what they mean is something like "emotional support dog." A service dog is trained very specifically, and very well, and a lot of them wind up not making the cut in that intense process, and none of their job descriptions is to be your bro.
K-9's are also impressive. I used to be friends with a cop who was part of his department's k-9 unit (actually, small town, so him and the dog were the entire k-9 unit). He wound up kinda ruining the dog, but when he started out, that German Shepherd was there to kick ass and chew bubblegum, and he was all out of bubblegum.