This is malay behaviour. .. they see you having makan their rice bowl they become jealous and take things into their own hands... watch the video in the link below...
https://www.facebook.com/poh.elton/videos/10153029919000933/
https://www.facebook.com/poh.elton/videos/10153029960475933/
https://www.facebook.com/poh.elton/videos/10153029919000933/
https://www.facebook.com/poh.elton/videos/10153029960475933/