Those monkeys look mean. You are in their natural habitat so they are curious and hopefully nobody was harmed. When I went to Bali, there were monkeys there too in Uluwatu Temple that I was nervous because of all the things I have read about what the monkeys can do and I was afraid it will happen to me. Thankfully nothing untoward happened.
Yes @leeart you are right about that monkeys,even sometime they brave to take food is in our hand.