um... uh... 
sadly, i paid $150 on eBay for a one week mining contract. Obviously it wasn't one of my finer monents. The problem was that i caught up bidding on multiple erupter auctions and didn't catch that it was a 1 week contract and not an actual erupter. 
I contacted the seller and asked that my bid be removed. We couldn't reach an agreement so the sale went through. My loss for being stupid. On the plus side, the seller felt sorry for me and turned it into a one month contract without me asking. Good guy, he didn't have to do that. You can be sure that i look close for that word "contract" now. 
sadly, i paid $150 on eBay for a one week mining contract. Obviously it wasn't one of my finer monents. The problem was that i caught up bidding on multiple erupter auctions and didn't catch that it was a 1 week contract and not an actual erupter. I contacted the seller and asked that my bid be removed. We couldn't reach an agreement so the sale went through. My loss for being stupid. On the plus side, the seller felt sorry for me and turned it into a one month contract without me asking. Good guy, he didn't have to do that. You can be sure that i look close for that word "contract" now. Ha! Whoa dude don't look at it like that.
Your "mistake" is actually good for Bitcoin. It's evidence to someone somewhere, like me, that Bitcoin is worth far more than what current exchanges show even if it was you unaware of the contract portion.
Besides you never know, this 1 month of mining with the 1 block erupter could yield you enough Bitcoins to retire with, cheapest retirement plan ever aye?
Would suck for the opposite to be the truer scenario that Bitcoins were never worth more than $30 bucks a pop.
I'm sure we would all feel that one in the morning.
Heh, that income was put toward more erupters, its all good. As for retirement plan. I'm already retired. This is just a hobby for me.