Trading in a car? Last-minute they discount the trade-in value due to damage and hope you won't realize that's already counted in the KBB value.
Car's making a weird noise? The mechanic wants to replace your struts for 1800$ even though the sound is just from the brakes being worn down.
Inherited money in a trust? The trust manager calls you to "discuss your plans" and get you to let them manage the money without your ever seeing it.
Miss paying taxes in a state because you thought you didn't owe them anything because you didn't actually live there? I'm still getting fake letters that try to scare me into calling them even though the bill was cleared up. years ago.
That's just off the top of my head. I swear sometimes it seems like this whole country is build on scams. It's fucking depressing.