Finance Horror

So, that was a bit of a rush. For about 8 seconds, I think my heart-rate
trippled.

I just got an email from my credit card saying my payment posted, and as I'm
opening it I'm thinking, "OK, mark another $100 off my checking." But when
I opened it, I saw that the listed payment amount was two thousand
dollars!! Suddenly I'm thinking to myself, oh shit, I don't
have two thousand dollars in my acount. How did I botch things
that badly! Decimals are important!

Then I remembered that I'd put in a balance transfer from that card to
another account with almost 1/2 the rate.