working for BofA's customer service i know entirely too much about the consumer end of the economic scale.
but here is an example i came up with:
"the cow banking system!"
the customer has 2 cows,
the customer opens a cow account with the bank to keep them them "safe"
the customer gets charged 5.95 cows per month for not having more cows automatically deposited into their account, even though the personal cow banker said it was a free cow account.
then the customer sells 3 cows even though they should know they only have 2.
the bank then charges the customer 35 cows for the extra one they sold.
the customer now owes the bank 36 cows plus one for every month that there are no cows automatically deposited into their cow banking account.
not being able to pay the cow bank back for all the cows they now owe, the customer's cow account is sent to collections with an outstanding balance after 3 months where the cow bank charged more monthly maintenance fees of 5.95 cows per month.
the customer is also reported to cow systems so they cannot open a new cow account before they pay off the approximately 60 cows they owe plus interest!
the customer is now cownancially screwed!
hope that one didn't offend anyone, i thought it was a funny way to put it.