I know that decades of romantic comedies have taught us that GRAND GESTURES are the key to winning someone over.  But not like this . . .

There's a 65-year-old guy in Belgrade, Serbia.  And apparently he met a couple of Lufthansa flight attendants last week and asked one of them on a date.  But she turned him down.

So . . . he called in a BOMB THREAT on her flight from Belgrade to Frankfurt, Germany.

Everyone on the plane was evacuated while the bomb squad investigated and eventually figured out it was a hoax.

The cops tracked down the guy, and he said he called in the threat because he believed if he could just keep the flight attendant from leaving the country, he could win her over.

He's facing several charges. 

(Sky News)