I've said this before: where you find conservative business dress, you will find conservative banking practices. Looks for shiny suits, bling, tattoos, piercings and cleavage, and you will find lax banking standards.
Also, you are more likely to be shut down with teller deposits. ATM deposits are either processed automatically, or by overseas workers.
Also, insert one MO at a time. If one MO gets scanned 2X in the ATM while another MO is not scanned, the MO not scanned won't be deposited, and the second deposit of the MO scanned twice will bounce, which will draw attention to the account from people in the back office you do not have a personal relationship with and don't answer to a branch manager.