It's been a rough week

I went to a party last Thursday night.  It was fun, I suppose, but not terribly.  Anyway, the point is, apparently someone stole my bank card right out of my purse that night.  I had it in a small pocket--I'd left my wallet at home--along with some cash.  The next day the cash was still there, but the card was gone.  At first I figured that I must've taken it out and lost it or something, so I wasn't too worried.  But then last night I checked out my account information online and there were $250 worth of charges that I didn't make.  I spent the better part of the evening on the telephone to USbank cancelling the card.  So I'll get a new one within a week or two, but meanwhile I have no access to cash.  Blech.  Who would steal a bank card from someone's purse at a party?  Am unhappy about the whole affair.