Wow! This sounds horrible! I have a permanent skin condition that itches most of the time, so I know how pesky and painful this can be!
I would not want anyone to have to feel like they had to scratch most of the time! I feel like I have to have my back scratched almost everywhere I go, and it is no fun!
Itching powder should not be sold anywhere, unless there is some benefits to it that I don't know about?
There are so many things that should be on people's mind instead of how to hurt someone or get a laugh at someone else's expense.
I know plenty of fun and funny things to do that do not require hurting others. Like playing sports, board games, telling non-offensive jokes, etc.
Please people find something better to do than bother and hurt other people and/or yourself!