I'm going to knock over a nearly finished jigsaw puzzle
I'm confused, why would you want to knock over a jigsaw puzzle?
I want to be the first who finishes the puzzle.
I think it's normal to be curious on what will happen if you knock over things, but in this case, someone may really be working hard for you to just knock the jigsaw puzzle over, and you may hurt their feelings if you do that. I suggest that if you want to finish the puzzle first, try your hardest to focus on it instead of sabotaging someone else's.
Wow man, you're a broken one.
I feel like you don't agree with me and that is not okay. If you do knock over one's jigsaw puzzle then you should prepare that the person may resent you moving forward and you may have damaged your relationship with them permanently.