I'm afraid I've got senile, because....

  I had forgotten to go to the minipark. It was a cleanup day of the neigborhood today, and last night, before going to bed, I had assured myself not to forget about it, but I forgot. I stayed at home all morning, because I didn't want to see anyone in the neiborhood and be asked why I didn't come and work with them. Late in the afternoon, I went out for a walk, and went as far as awazoe minipark and collected some chestnuts there.