It’s possible the janitor didn’t speak English well enough to understand what you wanted.
It would be nice if large employers, like Disney, would help with ESL classes for employees, especially in jobs which interface with the public. It must be hard to work in a job without being able to effectively communicate with the guests.
I was recently in Harrisburg PA staying at the downtown Hilton. I had to use my phone and Google Translate in order to tell the housekeeping staff that I needed extra washcloths. I could tell they were working hard, but the language barrier made their job that much more difficult.