This guy flushed multiple times and now I want to ask him why.
Why are you bothered by that?
He's wasting a lot of water.
People shouldn't waste water like that, but maybe there was a problem. Maybe that person clogged the toilet?
That's possible, but it's still a waste of water. It's terrible for the environment.
It's good to worry about the environment but I wouldn't get too upset since he may have had a good reason.