Say What?

Sam's teeth extraction is today. We have a busy morning and the past couple days have been the same as our morning.
In preparation for busy days, I try and let the kids know where we'll be going and estimate how long we'll be there. So, I gave the boys the run down of our errands (Es was still in bed) and they reacted well. About 5 minutes after I gave the 'run down', Zach came to me and said "Where are we going after the Dentists'?" Now, remember I just talked with them just 5 min. before. I'm trying not to get frustrated as I explain there is nothing after the Dentist. He tells me that Sis said we were going somewhere after.
Now, at this point I'm thinking that this is getting more involved than I want to get for this very BUSY morning! For heaven sakes! I still have to do my kick boxing video!
I go to Sis and asked her what she told Zach. She says "I told him that we have to go to the archaeologist's after we go to the dentist." I , trying to muffle my giggles, ask why. She responds "So he can pull out Sam's teeth!" Both of us had a good laugh as I explained orthodontist versus archaeologist.
Thank God for precious moments, we cannot get hung up on schedules and miss time to laugh.