Vernon Say No-No

For the Last 3 days, Vernon were not taking his usual afternoon Nap. When he reached home in the evening, he started yelling & screaming if we do not gave him the things he desire. I told papa & kakak, we pretend not hearing him screaming & yelling. Let him cry & scream, eventually he will stop and go for other thing after one minutes and this really works. believe it ??
Like when he grab my handphone, he love to throw it on to the cushion. and when he don't like to play with his toys, he throw way out to the balcony. We will say to him......hoohhhh...."NO"..."NO". He know this is a NO NO action and follow us to say NoNO too. But he still keep repeated except when he is at Nai Nai house. He strictly no throwing & touch the things that Nai Nai told him NoNo, even the TV remote on the coffee table. and he will U-turn when he get to the kitchen entrance. This is Nai Nai rules...............no wonder people usual say, kids likes to bully their parents-lah.
I believe this is what most parents encounter although they try very hard to control their kids from throwing their temper.