A German pensioner was kicked off a flight after terrifying air hostesses by pointing to his hand luggage and shouting BOOM. <br /><br />Ernst Gunter Walter, 70, had boarded the Airbus A320 at Suvarnabhumi airport Bangkok, Thailand. <br /><br />The Thai Smile flight was due to depart at 10.50am but Ernst sat in his seat and beckoned over cabin crew - before making a ''shh'' motion by putting his finger to his lips. He then pointed to his pink suitcase stowed in the overhead compartment and yelled BOOM - making the air hostess jump and sending the flight staff into lockdown. <br /><br />The holidaymaker form Karlsruhe city in southwest Germany was dragged off the flight - which endured a delay of almost an hour - and frogmarched into the airport's security office. <br /><br />Ernst ranted in German before being held for processing. He now faces a prison term of up to five years and or a fine up to 200,000 baht (4,600gbp).<br /><br />A spokesman for Suvarnabhumi airport said: ''While the crew was boarding passengers to Chiang Rai International Airport the foreign male signalled to staff to remain silent then pointed to his carry on bag and said 'boom'.<br /><br />''After this incident it was necessary for the crew to comply with the airport safety rules and report to the captain.<br /><br />''He ordered to bring the baggage and the passenger off the plane to check.''<br /><br />Police checked Ernst and his luggage but no suspicious items were found.