Eating a Ice Cream with Sand !? [Prank]

The new product "Tiramisu" of the Super Cup is rumored that "It just looks like a flower pot!" So I am going to examine, How much is it looks like sand.
---- Regarding, about video previously posted. ----
This prank series with my Grandpa and Grandma have already been uploaded ten videos so far, but there are some misunderstanding and comments saying, "It is just grandson is tricking and forcing his grandmother to do something disgusting, and he is just enjoying it."
I'm sorry for posting a video that caused a big misunderstanding.
And thank you for all the comments on "Eating Ice Cream with Sand" prank video.
There were a lot of you wanted "re-upload of the video," and I thought about it. I think it is quite crazy, but I am going here re-upload the video.
I was not able to put the video together, so I edited out the whole scene, and I only explained with the subtitles, and that created all the misunderstandings. So in this re-uploaded video, I added the scenes that have been cut to clear up all the misunderstandings.
I think it is not even necessary to dig up about it, but let me dig up the issues since the video is about the sand...
Please acknowledge that I just made you a bit mad with my punchline at the end and that the video became unusually long.
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