One of the common occurrences that we have seen in the cryptocurrency world is the fact that there are many glitches that happen on exchanges and these are generally at the detriment to the user. However in a recent glitch on the PDAX exchange, the price of Bitcoin on the 16th of February dropped down to 6100 USD. At this point in the glitch there were many people that bought Bitcoin, however the exchange is calling for all of these bitcoins that were purchased to be returned to the exchange. What are your thoughts on this? Do you think that this is fair?