Also achieved, a go on the commando slide in the local park where I went for a late afternoon stroll (if it isn't cloudy, it is now light at 4:30pm. Things can only get better). I have been meaning to do this since it was built, but haven't managed to be there when there were no children. Today I passed it and the area was empty so I seized the day. I had to sit on it, because standing up would have probably bashed my head against the support**, but I finally had a go (several times). Hurray again!
*As Peter Wimsey put it, that's not swearin', that's an adjective of quality. I'm as sincere as he was.
**It is in one of the children's playground bits of the park.