https://en.wikipedia.org/wiki/Know_your_customer
Sometimes you'll see variations: KYCC (Know Your Customer's Customer), KYB (Know Your Business), KYP (Know Your Partner), KYT (Know Your Transaction), and similar.
Where you s**t , how many times you s**t and if you done shitting in the past , shitting next to the toilet. Oh if they found out you been shitting next to the toilet even once......... or they smell you have or you didn’t flush properly ....... aml will be there to make sure they report anytime who hasn’t wiped their asssssssssss
Banking wants to know more about you than a proper tax audit ever does wtf