Yes, I actually built the same hand interaction as Surgeon Simulator in the 2nd iteration of the game but it was getting complicated very quickly trying to figure out all the grab points between which fingers and tracking joints etc. Knocking everything off the table and making a mess was very much intended but there are some physics issues that I didn't get a chance to fix before release. I did have left click as pickup for most of development but I found that I would often hold both the right mouse button and the left mouse button at the same time instead of letting the right mouse button go and returning the arm back to its original position. I will probably let people choose their control scheme next time! Thanks so much for the feedback!