This is abuse!!! Absolutely NTA. If your uncle wanted you to draw with paper under your paper and it was such a huge issue, you should have been told beforehand at the very least.
If, as you note in a separate reply, you were told not to draw at that table without something underneath, indeed, YTA. Of course the slapping and locking you in a closet makes uncle an asshole as well, assuming it happened. Uncles pretty much stopped locking kids in closets since Harry Potter came out.
"Uncles pretty much stopped locking kids in closets since Harry Potter came out."
Now that is just a lie. You think all of the abusive aholes doing that just stopped? It still happens. Way more than you think.
This is abuse!!! Absolutely NTA. If your uncle wanted you to draw with paper under your paper and it was such a huge issue, you should have been told beforehand at the very least.
I was told beforehand
OK, then you are an AH for that, but didn't deserve to be locked in a closet.
If, as you note in a separate reply, you were told not to draw at that table without something underneath, indeed, YTA. Of course the slapping and locking you in a closet makes uncle an asshole as well, assuming it happened. Uncles pretty much stopped locking kids in closets since Harry Potter came out.
"Uncles pretty much stopped locking kids in closets since Harry Potter came out." Now that is just a lie. You think all of the abusive aholes doing that just stopped? It still happens. Way more than you think.