The luckless 28 year-old's dreams of giving his sweetheart, Leanne, 26, the ultimate proposal have literally vanished into thin air.
Hajji, of Hackney, east London, had concealed a $12,000 engagement ring inside a helium balloon. The idea was that she would pop the balloon as he popped the question.
But as he left the shop, a gust of wind pulled the balloon from his hand and he watched the ring -- and quite possibly the affections of his girlfriend -- sailing away over the rooftops.
Extracted from Reuters, "Honey, will you marry... Oh. Never mind..."
Poor guy - let's hope he somehow found the balloon...