Amazing modelling and animation! And beautiful music, really nice UI.
There was a bit where three waiters were in a horizontal line, one was ever so slightly (20cm-ish) behind the other two but it barely looked possible to squeeze through. Also if you move into a lane where you would be bumped, the detection for the collisions happens before the animation for you entering the lane finishes, so you bump into waiters without physically 'bumping into' them.
but it was really fun to play.