Bus The English Muffin

Me: Hi I’d like to book an appointment to get my dog groomed please
Groomer: Okay, what’s your dogs name?
Me: Gus
Groomer: BUS?!
Me: …no…Gus. G-u-s.
Groomer: Oh! *laughing* Okay and what breed is he?
Me: He’s an English Mastiff
Groomer: An English MUFFIN?!
Me:…