I can't speak to what might go on inside the Village. Now outside the Village (during the Games) is another story.
The Montreal Games Village was built to be used as apartment/condos once the Games ended. Each apartment had a 3 or 4 bedrooms, a living room, kitchen, bathrooms, kitchen, etc. Certainly not built to house 11 guys (only 2 bathrooms!?!). Each room had nothing but beds, bedside tables which doubled as storage trunks and bedside lamps. The bedrooms had 3 single beds and living room had 4 single beds. We had 11 players, our coach and out manager in our apartment. The beds were comfy and it was sort of stylishly decorated, think Ikea.
As a team, we moved into the village about 10-14 days (can't remember exactly) prior to the Opening Ceremonies. A few months prior to our moving into the Village, one of my teammates had begun dating a young lady from Montreal. During the couple of weeks before and during our week of competition our curfew was 11pm. He was also one of my 2 roommates. At midnight he would climb out the window of our bedroom, onto a walkway, get picked up outside the Village gate and go stay at his girlfriend's home. He would then sneak back in at around 7AM. Amazingly, he played incredibly well. Fast forward, they are married to this day!
I know there were other shenanigans going outside the Village on but I prefer not to elaborate. The water polo competition in Montreal used 2 pools for competition, one being the main Olympic swim pool. Polo was played in the main Olympic pool for the first week and then swimming took over for the second week. We had games every day for the first week but now since there is both women's and men's competition and it lasts for almost the entire 2 weeks. Additionally, they now have their own dedicated pool(s). This means we were finished after the first week and had the second week to go our own way and do our own thing. We still stayed in the Village and were able to attend other events and stay out late...VERY, VERY LATE!!!!