Ermm?

A busy day. We got up early as our first guests were leaving at 0630, but they sneaked out very quietly at 0615! So we missed them. I don't know why we feel we have to get up to say goodbye when we said all our goodbyes last night but we do.
The rest of the party left five minutes before the cleaners arrived, so the next four hours passed in a blur.
The cleaners left by 2pm and I continued making beds until this week's guests arrived at 3ish just as I was vacuuming the door mat, my last job!
On clearing out the fridge I found this pack of black olives. The thing is, they are green olives! Am I missing something here?