Passenger's bizarre use of drinking glass on flight leaves travelers horrified

An EVA Air business-class passenger left fellow travelers aghast by using a drinking glass to vigorously scratch his scalp while he was seated in the middle of the flight. 

The odd incident aboard a recent flight out of Taiwan on Sept. 24 was all caught on video. 

The man aboard the Boeing 787 Dreamliner apparently decided that the best way to soothe an itchy head was to vigorously massage his scalp using the rim of a drinking glass.

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