Trying in Vain to Get the Pilot's Attention from The Terminal

These folks spend 90 seconds tapping on the window near the gate. Are their antics hilarious or poignant? Some of each?

Maybe they really need to be somewhere. If so, their time would be better spent talking to a customer service agent elsewhere.

We found it on One Mile at a Time. Blogger Lucky adds as a bonus the epic Hong Kong passenger meltdown.