Not suprising at all considering there were two attempted hijackings in the past 12 days that received very little media play -- the one from Sweden and the one from India. Also not surprising since travelers are probably a bit tense today. It could be that these three were up too something. It is also possible that the three hid in the bathroom to get away from some overzealous "patriots" that were alerted to some suspicious behavior—such as drink their Coke ® too quickly.
It is also possible that the three "types" were messing with people's minds. It's a new joke. Act weird and then scream bloody murder when someone questions you. Gang-types love to do it in malls.