You don't even need to degrade yourself with a lie. With an overnight, it is the passenger's option and all you need to do is opt for not checking your bag through.

A connection is anything up to 24 hours. With AMS, you should have no problem with an overnight

Nobody here can tell you that nothing will happen to you. But, the vast anecdotal reporting is that for the incidental hidden city ticket fraud, nothing happens. If you feel a sharp jab, pass out and wake up in AMS, please report back.