This was part of my daughter’s school work* last week:

What about the thing that I am certain will happen today?

I will have a rough blood sugar roller coaster.  – nope.
That’s not a certainty.  Today’s been pretty mellow, to be honest.

The temperature will be exactly 72 degrees and sunny today – nope.
I live in New England.  There isn’t a temperature certainty to be found any day of the year.

I won’t make any of my own insulin today.  – yes!  
That’s a certainty.  I won’t make a drop of insulin (my c-peptide levels are undetectable).  But it’ll be okay.  I feel pretty certain about that.  It’s going to be okay.

 (*  The crossed out “duh” is my favorite.)