Spent much of my computer career in banks, servicing banking teller systems, to ATM's. When waiting for codes to load, and refilling ATMs bank manager must be present. Lots of small talk time. This is how it works. The banks get guidelines from the Feds, which are getting them to disperse among the nasty big brother type of institutions that may have 3 letters. I am sure you can think of 4 or 5. They want to know of any cash transactions, involving $3,000 or more. If you bring in 3 dimes and want to buy a CC, reported. A deposit to your checking account? 3 dimes, if cash, reported. The bank managers are so intimidated by the feds so they just take it as policy vs. guidelines. Also, any suspicious or irregular activity, reported. Shades of Walt Disney here. That is subject to interpretation. Let us say you deposit the same amounts regularly to your account for months. Then in one month you deposit a bunch more, maybe twice or 3 times. They will look at how were the funds deposited. Cash, reported. CC's, most likely, reported. Depends on what mood they are in. If you stay within the guidelines, are a good customer to the bank, the manager will give you a nod, and you maintain a low profile. In no way am I advocating any illegal activities. Just what the guidelines are, and how they are used.
God Bless America!...OF