Sorry about the awkwardly worded thread title!
What I mean is trivial things, like for example today:
Dd had taken her fold-up scooter to Rainbows and was planning to ride it back with her friend, accompanied by the friend's mother. This mother couldn't work out how to unfold dd's scooter, so dd ended up walking while friend was scootering. Cue dd being very upset.
How do you deal with this kind of thing? Tell dd that it really doesn't matter? Try and "recreate" the situation at the next available opportunity to make up for it? Or what? I find it really hard when dd is very sad and I just want to make it right for her, but otoh I'm thinking maybe I should teach her that some things are not worth getting upset about?