"I actually have seen a person on a bad trip run out into a street without looking for oncoming cars."

And I have seen people do this when they weren't on any drugs (not to mention those who were drunk on perfectly legal and socially respectable alcohol).

Sometimes it was because they were listening to an iPod and were so wrapped up in their own thoughts and the music that they were oblivious to what was going on around them.

Perhaps we should make iPods illegal.