Losses when trading with bitcoins When investing in bitcoins can you lose any more than the total amount of currency with which you invested?

Gentlemen, I see my original question has caused a bit of debate. I have been asked by someone to be more specific as the question seems to be causing some confusion. Let me give an example. If I invest 500 US dollars into buying bitcoins; let's say this is not money loaned, but my own money from my own personal savings account; let's also say that I do not trade or buy anything with these bitcoins. This is purely a financial investment with the hope of gaining a return one day of say, 600 US dollars; is it possible (maybe even likely?) that I could lose not just the 500 dollars invested, but also more than this, say 520, 550 or 600 dollars? You experts, please take account of all possible scenarios, fees and other hidden costs when answering my question. Thanks!
Yes, absolutely. Here's just one example of how this can happen:


You invest Bitcoins worth $100 in some kind of high interest scheme.
You cash out of the scheme and get Bitcoins worth $200.
You invest those Bitcoins.
You lose them.
The high interest scheme turns out to be a Ponzi scheme. You are sued to clawback the $100 value of the Bitcoins that were fraudulently paid to you.
You lose that suit and now owe $100 on top of the $100 you invested.


Another example would be if you unknowingly withdraw funds from an exchange that's insolvent, then reinvest and lose those funds. If the exchange declares bankruptcy, your withdrawal could be ruled a preferential transfer and you would have to repay it.