-Buttoning your sleeves without a friend's help.
This isn't difficult for me at all, I have a method that makes it super easy.
Sumotori.
I couldn't make it two minutes without having to pause the video so I could catch my breath.
oh jesus loving christ I remember the first time I saw that, it was like 2 in the morning and I had to stop watching so as to not wake up my parents with how hard I was laughing. next morning my diaphragm hurt like a bitch because of how hard I was trying to contain my laughter.