"This is really blatant money laundering? How are you planning on beating the FBI?"

"Seriously? Oh, I'm old and confused and this nice young gentlemen on the telephone called me and said he accidentally put a bunch of money into my account that was supposed to go to his mother. Such a nice boy. Just keep up your side of the deal. If my cut isn't in the Cayman account within the week, then I can guarantee that you won't be worrying about the FBI."

EDIT: Just to be clear. I'm hoping that we don't unknowingly live in a universe where all elderly people are secret underworld mob bosses. However, I'm honestly not sure how you would tell the difference between a sufficiently proficient elderly mob boss and someone who's just old and hasn't kept up with changing trends.