Thought it would be fun to add a bit of code where if you and another PC are walking into a room from different directions at the same time (+- a second or two while still "walking"), there is a chance (maybe 5% and then some perception/agility/luck roll) that you bump into each other and drop whatever it is you're holding.
It would add some chaos to the game, which is always good, and I think spur some fun opportunities for random altercations between people who otherwise wouldn't have beef.