I have personal and professional relationships with the bankers where I bank. I would give the money back. Then again, I would never be charged a late fee like PkrKat describes, and if I was one phone call would take care of it. I can think of banks that I used in the past where I would not hesitate to keep the money. Now I realize that if you feel that way about your bank, you bank at the wrong place, because they really don't give two shits about you.

If you like your bank and need a working relationship with them, give the money back. If not, fuck 'em.

The only reason I didn't do this earlier is cause I was at Foxwoods without my laptop, and I'm dissapointed nobody else did this yet. Shame on you guys.