A taste of my cruel humour

So apparently I was paid for the February statutory holiday when, as a term employee in my new job, I was not supposed to be.

The question came up in an email from the Admin Coordinator asking if my letter of offer mentioned whether I was supposed to be paid. I let her know that my letter mentions getting 6% in lieu of paid holidays.

She responds soon: "I have to submit a correction to payroll for this day. I hope this is okay with you."

My reply: "That’s fine; my son will just have to eat table scraps for a while."

Half of me hopes I didn't make her feel guilty. The other half wants me to mention how "It's okay - you should hear how cute he sounds calling for 'Water! Bread! Water!'"