One user shared a story of Tyra Banks laying down some excellent life advice.
Another talked about how Nathan Fillion looks out for the production crew on set.
One user told the story of David Tennant taking time out to read a fan's academic paper.
There were a lot of stories about celebrities who went out of their way to tip well.
There was even a story about Robin Williams secretly paying for people who were bowling.
Seriously, not even the smallest acts of kindness went unnoticed.
Hopefully this serves as just a friendly reminder that it's not hard to be nice to people, so like don't be a jerk, OK?