It happens, I know, I am only human, but what now ?
So, this is how the conversation with Mr T went:
Hi Mr T, I forgot to write down the carbs on the garlic bread, sorry.
Oh, do not worry mom, I had it for morning tea.
Did you bolus for it?
Yes, I guessed it was 20 carbs.
Oh good on you! It was really 30 but that was a good guess. What is your number now?
Ok. Have fun at the break, Mr T!
Hmmm, he must have been running a lot to have burned the 10 carbs difference, just as well he did not bolus for 30 ...