I'm really not sure if I was just being stressy and intolerant and therefore BU, or if I genuinely have a point?!
We took our 3 DCs to the zoo over the Easter holidays. I expected it to be busy, but it was really busy - normally not a problem. The crowds, the scooters and me really didn't mix.
My DCs all have scooters, but I wouldn't let them use them at the zoo or in a very busy place. I was surprised at how many children were on scooters at the zoo - and they really were a nuisance. The zoo we were at is very open and hilly, so the children were making the most of the environment and zooming around. I'm sure they were having a great time, but dodging them and pulling my DCs out of the way of a collision about to happen wasn't so much fun. The parents were seemingly no-where to be seen, and so the children weren't being told to be careful, slow down etc.
I've always thought of scooters as entertainment in themselves - What's wrong with walking, talking to each other and taking it all in - these kids were just bombing around... expensive entry into a hilly park really 
So, am I an U, grumpy old moo?! :)