[PaulHoule]

Molecules of an ideal gas bounce off the sides of the container, not each other.

This reminds me of the other day when my son and I were standing close to several beehives and watching the bees work. I asked him, "How long do you think we have to stand here to get stung?" and he said "a week". A few minutes later one of the bees had gotten stuck in his hair and was working it's way in deeper before stinging him.

[bediger4000]

Then the gas analogy might be even better: anyone who's been in a room with one or more flies has observed that flies spend a high proportion of their time bouncing off walls and windows.