Handbag Arm Syndrome

I need something explained to me.

What is it with girls and ‘handbag arms’? Why do girls feel the need to wave their non-handbag bearing arm around as they walk?

I was walking through town yesterday lunchtime and witnessed a particularly spectacular and dangerous example of this. This rather short, squat girl was walking ahead of me. Her right arm was clamped down on her handbag, whilst the other appeared to be spasming. It’s possible that it wasn’t actually attached to her body and was, in fact, independently mobile. Its movement ranged from flopping around like a fish next to her waist to being extended perpendicularly at almost 90 degrees from her body. At times it appeared to be the subject of some form of electro-shock therapy. Had she been a tall person, passers-by may well have been in danger of losing eyes or teeth. As it was she almost punched several passing blokes in the groin with it.

So… those members of the female persuasion, perhaps you could explain this arm-flailing requirement to me. As for the blokes... well... just talk amongst yourselves for a bit!