My child minder is assuming I will be picking my dc(2) up early on the last day of term as it's a half day. She asked me what time would I like to pick up, I said at normal time. I am paying for the whole day anyway and she didn't offer any refund if I do. I'm a teacher and we do have early finish on the last day but I planned to go for a drink with colleagues. She has school aged dc so I guess she thought she would get a half day too? She seems a bit put out by it and now I feel guilty as I should want to spend my half day with my dc?! But it's a rare chance to socialise with my work colleagues so I'd want to go. AIBU?