The "Jessica" Sales Cycle

So last night I had probably one of the funnier and yet more embarrassing "idiot" moments in a long time. I've been selling a bunch of my old DVDs through a local Facebook group called Upcycle. It's like Craigslist but on Facebook. Anyways, a girl came over last night around 8:45pm to pick up some of the movies, and this is what ended up happening...

Girl: I'll take 2 of the boxed TV series and 1 DVD.

...total comes to $11 and she hands me $11...

Me: Oh, let me give you $5 change!

...I hand her $5 for no reason...

...she walks out the door...

...I realize my mistake and run after her...

Me: I'm so sorry but the total was actually $11 so I should not have given you change.  

Can I please have my $5 back?

...she says no problem, hands me the $5, and drives away...

...I come back inside and put the cash in my wallet when I realize that the $10 bill is missing...

...I frantically search everywhere, looking for the $10 bill, and I can't find it....anywhere...

Dave: Did you accidentally hand her the $10 back?

...he starts laughing hysterically...

Me: I can't remember! I have no idea but I guess so! OMG I gave her back her money!

...Yup, I apparently decided to give her her original $10 bill when I got my $5 back from her...

...Frantically begin texting her telling her my mistake...

...Thank goodness for nice people! She drove back and gave me the $10...

...So I gave her another DVD for free...

Cannot. believe. this. actually. happened.

As Dave described it:

The "Jessica" Sales Cycle

Stage 1 -- Exchange Goods for Money

Stage 2 -- Return half the funds as 'change' without reason

Stage 3 -- Attempt to remedy Stage 2, but instead return all funds to buyer

Stage 4 -- Fail