That's kind of scary. I just started with BTC stuff, and I used them to sell 1 BTC on Tuesday. Sent the BTC from my wallet and then immediately sold, and transferred the balance to my Chase account. Hopefully the cash gets there, it said it would arrive no later than Monday.
If it doesn't arrive I'll post an update.
FYI This transaction went through fine. So what I did on Tuesday is transfer 1BTC from my wallet (at blockchain) to Coinbase. I then immediately sold on coinbase and sent the USD to my Chase bank account. Chase received the transfer today (Friday).
If I sell any more BTC I'll likely use them again.