Try not to laugh or grin (IMPOSSIBLE) challenge

I made this videos for my friends, because I thought it would be funny, I didn't expect so many views. I have been getting a lot of comments about how people didn't find this video funny or its not "impossible" , I don't actually think this video is impossible, although I think its funny, I understand that everyone has a different sense of humour and a lot of people just wont find this funny while others will really like this video, so before you comment or dislike, just think about that I may find different things funny to you. So it might be that the video is funny, but it just doesn't suit you. Again thank you for all the views I really appreciate it. :)