How—and Why—to Conceal Naughty Credit Card Purchases - Money - Lifehacker
Now, this isn't a big concern, but it might be, so I decided to post it.
To sum up the article: Adult toys are considered risky behavior, no different than booze. And credit card companies flag people who do a lot of risky behavior. So if you buy bambinos a lot, you might be in trouble.
Now, this isn't a reason to stop buying bambinos, obviously. Prepaid cards are better, and I'm sure that most of you do that, but I still figured I'd toss this out here.