Mommy Math Problem

It's Monday!! Time to shake out your brains and get to using them again.  Why not start your day with this "Mommy Math Word Problem?!"

Alternately titled "The Day I Gained a Kid, Lost a Kid, Gained Two Kids and Gave a Kid Back"

This is a true story (to the best of my recollection) of a series of events from yesterday.

Sunday morning I woke up with 3 kids and a husband.  Then Frances had a friend come over, so we had 4 kids.  We went to Mass and sat with Julie and her two kids.  Now there are 6 kids, right?

In the middle of Mass, Robert had to go to the bathroom, so Ken took him.  Frances got my attention to ask if she could go too, and Benjamin ran off without me.  I followed behind Frances, who was behind Benjamin and went out to the bathrooms.  I didn't see Benjamin, so I assumed he had caught up with Ken.  I waited outside the bathrooms for Frances. At this point I was in charge of zero children. 

Then a friend came around the corner with her newborn.  In retrospect what I think she said to me was, "They are almost done in there. Can you hold S so I can go to the bathroom?"  However, what I heard was, "They are almost done downstairs {meaning the Children's Church kids}. Can you hold S while I go to the bathroom."

So I was holding S when Ken walked out of the bathroom with Robert. Ken looked at me and said, "Where'd you get another one!?!" At the same time I said, "Benjamin's not with you??"

Ken went back to the seats with Robert to check for Benjamin and I went over towards the girls' bathroom.  Mary Beth came out to claim S and said to me, "They are so cute together! She takes such good care of him." and I said, "HUH?!"  She looked at me funny for a minute and then something dawned on me. "Benjamin's in the bathroom with Frances!?"  And I laughed and said, "Please don't think I'm a horrible mother, but I actually had no clue where he was!!  I had though he was in the bathroom with Ken, but then Ken came out and didn't have him."  Mary Beth laughed with me as I continued, "All I knew was that he was in his Father's house.  Isn't there something in the bible about that??"

I collected my two children and went back to sit down for the rest of Mass.  Henry came back from Children's Church and I was back to 4 kids.  Ken took Frances and Robert to Sunday School and I had 2, but then Julie needed to take L to the bathroom, so I offered to walk D out to her car for her.  Henry helped hold D's hand and I held on to D and Benjamin.  We walked (very slowly) out to my van at which point Julie caught up with her and re-claimed her kid. 

I took my boys to the grocery store and then went back and picked up Frances and Robert from Sunday School.  We went home, ate lunch, gave Robert back to his dad and I sat on the couch a reveled in how quiet it was with only three kids!!

Oh and now for the math problem:

How many more years before this is a problem??

Robert and Frances at Mass