with my permission

[imchongjun]

Hello, teachers.
I have trouble understanding the following passage.

(Several tourists and a dog are going to take a bus trip. The driver, Bartolome, was dead against taking a dog in the bus, but his employer severely ordered him to take the dog. Bartolome holds a grudge against his rude employer. Then another tourist, Mrs. Henshaw, starts a fuss over the dog.)
"He's not going with us!" Mrs. Henshaw said shrilly. "Not that awful animal!"
"With my permission, positively not," Bartolome told her. "I refer you to the bloated brigand who proprietors this foul establishment and also the trips of sight-seeing magnificence."

Bartolome speaks strangely funny English, but here I am not sure what he is saying. "With my permission" seems to mean that he permits the dog to ride the bus. But then, to what is he saying "positively not"? Also, by "I refer you to the ... brigand", is he telling Mrs. Henshaw to ask his employer about the matter?

 

[susiedqq]

Just a guess . . .

"He's not going with us!" Mrs. Henshaw said shrilly. "Not that awful animal!"

"Pardon me (or may I can speak freely), no, he's not," Bartolome told her. "I ask that you deal with the overwieght thief who owns and runs this foul establishment and also the trips of sight-seeing magnificence."

 

[imchongjun]

Yes, that makes sense.
Thank you!