You're forgiven. It's easy to forget teachers and nurses have families too. Non-pupil days are a pain in the posterior for teachers, especially if the teacher is married to a teacher, who can't take holiday in term-time and if they have more than one child, attending different schools. I used to book nannies well in advance, which cost a fortune, while I sat/slept through some "training" (aka some member of the senior leadership droning on about something I already knew).