Robbing banks

Anyone who knows me knows I get a boatload of email, and of course, insane amounts of spam. The last time I tracked it, I had something like half a million pieces of it myself in a calendar year - so I see a lot of it. Given I do professional work in email, I have to make sure legit email doesn't go to spam, so I notice what the current spam trends are, given I have to look through it all the time.

One that popped up recently a lot was one that went "How to rob banks legally!"

It occurs to me that if you could "rob a bank" legally, it would no longer be "robbing the bank", wouldn't it, as by definition, robbing is an illegal activity.