I remember monkeys visiting school backyards time and again. Happened couple of times during the decade at STX. Once during a Biology period in grade 8 (our classroom used to be in the old buiding) a monkey got into the classroom from the rear window of the classroom right in the middle of Biology period. Everbody laughed at the sight of monkey which scared the hell out of monkey and it exited out of the classroom just as quickly as it had entered.