My brother and his fiancée (also one of my very good friends, and both DS1's godparents) suggested a while ago that they take DS1 and DS2 (4.5 and 2.5) on a day trip to the zoo during the holidays. It was completely their idea, no suggestions from us at all, although obviously DH and I are pretty pleased about having a day to ourselves! DB and his DF work full time, house share with another couple, don't have any children of their own, and are quite 'well off' in terms of disposable income. DH and I are skint as skint things and wouldn't have arranged this day trip ourselves as we can't really afford it right now.
The trip is arranged for next week and I've just had a call from DB's F asking whether we will be paying for the zoo tickets for our DSes. I said that we couldn't afford to, hence why we didn't arrange the trip ourselves, and she seemed to get a bit huffy but said "Oh OK, that's fine . We'll pay, I just wanted to check ". The way she said it just made me feel like I was in the wrong.
So am I? Or should they pay for a day trip they suggested and organised? I am going to pack a lunch for the boys if they need one (they haven't decided whether they're having a picnic or not) and will give them a couple of pounds each to spend in the shop, but that's about the limit of my budget. I've just been left feeling like I'm being really U. Help me Mumsnet!